Home / Series / Horizon / Aired Order /

All Seasons

Season 1964

  • S1964E01 The World of Buckminster Fuller

    • February 5, 1964
    • BBC Two

    Horizon follows the work of R. Buckminster Fuller and his research of the geodesic dome.

  • S1964E02 Pesticides and Posterity

    • May 30, 1964
    • BBC Two

    Dr. Frank Darling and Dr. Eric Edson discuss different environmental priorities.

  • S1964E03 A Candle to Nature

    • June 27, 1964
    • BBC Two

    A reconstruction of a Michael Faraday lecture last given in December 1860.

  • S1964E04 Strangeness Minus Three

    • July 25, 1964
    • BBC Two

    Horizon explores the findings of physicists at Brookhaven, Long Island, New York. Who, after two years and thousands of photographs, have identified a predicted new particle which has a unique characteristic: 'strangeness minus three'.

  • S1964E05 The Air of Science

    • August 22, 1964
    • BBC Two

    Horizon looks at the work of the National Institute for Medical Research.

  • S1964E06 The Knowledge Explosion

    • September 21, 1964
    • BBC Two

    Prof. Arthur C. Clarke, Derek Price and Nigel Balchin discuss the past and future of science.

  • S1964E07 The Amateur Scientist

    • October 19, 1964
    • BBC Two

    The work of amateur scientists.

  • S1964E08 Tots and Quods and Woodgeries

    • November 16, 1964
    • BBC Two

    Horizon investigates the 'Tots and Quots' and the 'Woodgeries' two groups set up by scientists before the second world war to discuss the future of science and how it effects society.

  • S1964E09 Professor J.B.S. Haldane, Obituary

    • December 1, 1964
    • BBC Two

    This program is about Professor Haldane seated in an armchair talking about his work and other scientists.

  • S1964E10 Science, Toys and Magic

    • December 14, 1964
    • BBC Two

    Dr. John Napier introduces a program on the value of scientific toys and tricks performed by a magician which can also be performed using different forms of scientific theory.

Season 1965

  • S1965E01 Learning from Machines

    • January 6, 1965
    • BBC Two

    Horizon looks into the principles behind machines and investigates why they are so successful.

  • S1965E02 The Technique of Change

    • January 20, 1965
    • BBC Two

    Horizon profiles the Bell Laboratories in the United States. They are one of the most important research and development centers where more than 4000 scientists work with a budget of one hundred million pounds every year. Horizon investigates the possibility of setting up a similar research station in Britain.

  • S1965E03 Star Gazers

    • February 3, 1965
    • BBC Two

    Horizon explores American plans to launch a space observatory to map the universe and learn how stars are created.

  • S1965E04 Science and Art

    • February 17, 1965
    • BBC Two

    Horizon looks at the relationship between science and art, and also explores artists attitudes towards science.

  • S1965E05 The Great Computer Scandal

    • March 3, 1965
    • BBC Two

    Horizon investigates the states of big research computers in Britain. Also, Horizon looks at the H-Bomb Detectors and how British scientists have developed a nuclear explosion detector which has changed the political outlook for nuclear test controls.

  • S1965E06 Faster, Farther, Higher

    • March 17, 1965
    • BBC Two

    The episode was shot from a biplane taking off and flying over the CERN Nuclear Physics Laboratory in Switzerland. Colin Riach interviews Dr. Lipman from the Rutherford High Energy Laboratory where an experiment is running to find out if there is a fifth force in the Universe. Colin Riach also interviews De Vos by Gordon Rattray Taylor on his theories about mental illness and geographical location.

  • S1965E07 Restless Genius

    • March 31, 1965
    • BBC Two

    A tribute by Professor E. N. da C. Andrade to Robert Hooke architect, astronomer, geologist, and meteorologist who discovered the cell, the unit of living tissue, in plants 300 years ago and A report by Professor R. D. Preston On thirty-six years of attempts to elucidate the baffling structure of plant cell walls Faster, Farther, Higher - A Hungarian film-maker takes a wry look at man's attempts to accelerate with a commentary by Anthony Smith

  • S1965E08 Other Side of the Pill

    • April 14, 1965
    • BBC Two

    Horizon considers the safety of 'The pill'.

  • S1965E09 The Big Smoke

    • May 12, 1965
    • BBC Two

    Nine years after the passing of the Clean Air Act, where do we stand? Scientists are gradually finding out why dirty air Is so harmful to ill persons with Dr. P. J. Lawther of Air Pollution Research Centre at St. Bartholomew's Hospital.

  • S1965E10 The Long Slide

    • May 26, 1965
    • BBC Two

    When a rubber tyre rolls fast on a wet surface it may rise on a film of water and begin to 'aquaplane.' Scientists are studying this fact which creates a real hazard to aircraft passengers and fast drivers. Also: Men With Gills - A new membrane developed in America holds forth the prospect of men being able to live under water.

  • S1965E11 Men and Sharks

    • June 9, 1965
    • BBC Two

    Horizon looks at Prof. Perry Gilbert's research on captured sharks and meets with the eminent physiologist Sir Henry Dale as he celebrates his 90th birthday and looks back on his career in medical research.

  • S1965E12 The Sudden Light

    • June 23, 1965
    • BBC Two

    Horizon looks into the study of a total eclipse, and reports on a new machine and its potential to teach deaf children to speak.

  • S1965E13 Dr. Joseph Needham

    • July 14, 1965
    • BBC Two

    This episode of Horizon features Dr. Joseph Needham, an eminent scientist and humanist who is perhaps the greatest living authority on China.

  • S1965E14 Science Fiction: Science Fact?

    • July 28, 1965
    • BBC Two

    Is all science fiction mercly fantasy-or can it give valuable clues to the future? Also: Desmond Morris interviews naturalist George Schaller about his work with gorillas studying their behavior in the wild, and work studying tigers in the wild.

  • S1965E15 Certain of Uncertainty

    • August 11, 1965
    • BBC Two

    The four men who opened up a new field of physics: Max Born, Paul Dirac, Werner Heisenberg and George Thompson meet and discuss topic with John Charap at the annual science conference in Lindau, Germany.

  • S1965E16 Time Stood Still

    • August 25, 1965
    • BBC Two

    Professor Harold Edgerton of the Massachusetts Institute of Technology, who has won international recognition for his achievements in ultra-high-speed photography, talks about his work and shows some of the remarkable pictures, both still and moving, that he has taken. Also: Weighty Matters - Robin Clarke , Editor of .Science Journal, talks to Dr. Kilmister of King's College, London, about gravitational collapse and new developments in cosmology.

  • S1965E17 Fuel for the Future

    • September 8, 1965
    • BBC Two

    Horizon interviews Prof. Andrade about his collection of rare scientific books which he was about to sell.

  • S1965E18 Let Newton Be

    • September 22, 1965
    • BBC Two

    On the 300th anniversary of Isaac Newton's greatest year of discovery, one of his most ardent disciples, Prof. Julius Summer-Miller, comes from California to illustrate the excitement of seeing Newton's principles in action.

  • S1965E19 Special Senses

    • October 10, 1965
    • BBC Two

    Horizon investigates Dr. Gregory's viaduct experiment which involved looking at an object at night through the arches of a viaduct in order to test the effects of night on the accuracy of human vision.

  • S1965E20 An Affair of the Heart

    • October 24, 1965
    • BBC Two

    Horizon explores heart attacks and thrombosis.

  • S1965E21 10,000 Tombs

    • November 7, 1965
    • BBC Two

    Horizon probes into the Etruscan tombs in Italy.

  • S1965E22 Toil, Sweat & Tears

    • November 21, 1965
    • BBC Two

    Horizon profiles the scientist, polymath, and Nobel prize winner Prof. Albert Szent-Gyorgi.

  • S1965E23 The Big Dishes and the Living Stream

    • December 5, 1965
    • BBC Two

    Horizon looks into radio telescopes.

  • S1965E24 Boys on Bubbles

    • December 19, 1965
    • BBC Two

    Professor Charles Vernon Boys gives a Christmas lecture on bubbles. Also: Problems and Puzzles - T. H. O'Beirne , a mathematician, challenges you to solve some of the puzzles he has invented.

Season 1966

  • S1966E01 Windows of the Soul

    • January 2, 1966
    • BBC Two

    Horizon follows experiments on the eyes being undertaken at the Department of Psychology at the University of Chicago. The purpose of the experiments are to discover if our eyes can tell us things we might prefer to keep secret. Also: Elixir of Youth - In Rumania, more than forty thousand people have been given gerovital H3, in the belief that it will make them younger, by Dr. Ana Aslan Dr. Alex Comfort comments on a film about this mass experiment

  • S1966E02 The Troubled Mind

    • January 16, 1966
    • BBC Two

    Horizon explores an American mental hospital, observing schizophrenic patients under treatment with remarkable new drugs.

  • S1966E03 A Man of Two Visions

    • January 30, 1966
    • BBC Two

    A profile of Dr. Albert Copley, the famous hematologist, who is also known as an accomplished artist under the name of Alcopley.

  • S1966E04 A Theory of the Earth

    • February 13, 1966
    • BBC Two

    The eminent Canadian geologist. Professor Tuzo Wilson , explains his new ' Froth on the Broth ' theory of the structure of the earth to David Wilson before his recent lecture to the Royal Geological Society

  • S1966E05 Route 128

    • February 27, 1966
    • BBC Two

    North of Boston, on Route 128, a new industrial landscape based on science is developing. Here men of high intellectual qualifications are developing way-out products, including a helicopter powered by radio waves, a computer which teaches medical diagnosis, and a hair-raising way of testing driving conditions. with Dr. Dennis Robinson

  • S1966E06 The Beginning of Life

    • March 13, 1966
    • BBC Two

    Horizon looks at the life cycle during the development of a human embryo.

  • S1966E07 So You Want to be an Inventor?

    • March 27, 1966
    • BBC Two

    Horizon looks into inventors who struggle against exploding technology, the buying power of great industries and taxation problems to make their leaps into the unknown.

  • S1966E08 Chance and Decay

    • April 10, 1966
    • BBC Two

    Europe's heritage of pictures, statues. and buildings is being destroyed at a frightening rate by atmospheric pollution, but an American scientist has just invented a method of preserving limestone which conservationists hope will change the situation radically. Also: Meteorite Mystery - In 1908 a vast explosion shook the Tungus district of Siberia: was it due to the biggest meteorite ever to hit the earth, or something odder? The Russians, after sending out many expeditions, have just released a filmed report.

  • S1966E09 Towers of Ilium

    • April 24, 1966
    • BBC Two

    The location of the historic city of Troy was finally pinned down by the researches of CARL BLEGEN , the detailed results of whose work have only recently become available. Also: The Exploding City - By A.D. 2,000 more than half the world's population may be living in cities. The population of some of them may exceeed 60 million. This is one of the main preoccupations of the World Institute of Ekistics, founded in London this month with Lord Llewelyn-Davies Architect, and Chairman of the Centre for Environmental Studies Constantinos Doxiadis.

  • S1966E10 Man in Space

    • May 8, 1966
    • BBC Two

    Horizon travels to the spacecraft center in Houston, Texas to study astronauts in space and how they react to being in space and the stresses of launching and re-entry.

  • S1966E11 Destination Mars

    • May 22, 1966
    • BBC Two

    Detailed plans for an eighteen-month expedition in which a fleet of gigantic nuclear-powered spacecraft will land men on Mars are disclosed by Dr. Ernst Stuhlinger of N.A.S.A., who demonstrates a model of the spacecraft which it is planned to use. Also: Editors in Conference - The Editors of two leading scientific magazines, Dennis Flanagan of the Scientific American, and Nigel Calder of the New Scientist, discuss with Gordon Rattray Taylor the problems of popularising science and placing it in a social context.

  • S1966E12 Man Meets Duck

    • June 5, 1966
    • BBC Two

    At his Institute in Bavaria, Konrad Lorenz , the world-famous author of King Solomon's Ring and Man meets Dog, lives surrounded by his flocks of ducks and geese. He is studying these creatures in the hope of throwing light on man's behaviour. Tonight's visit to this unique establishment shows the results of some of Dr. Lorenz's exciting experiments in this field. Also: The Picture Machines - The world knows all about the uncanny mathematical abilities of the computer. But what happens when these machines learn to draw?

  • S1966E13 Where Must the Money Go?

    • June 19, 1966
    • BBC Two

    Today many sophisticated pieces of medical hardware are coming out of the laboratory and into the hospital, among them kidney machines, artificial hearts, and monitoring devices for coronary victims. But these machines are often very expensive and may tie up capital in the treatment of chronic illness, capital which could be used for other, perhaps equally urgent, cases. How does international medical opinion see the outcome of this dilemma? Also: Phantoms Incorporated - Radiation studies, manned spaceflight experiments, and accident research all depend, for many of their results, on ' Phantoms.' These are substitutes for humans that give valuable information on the limits of tolerance of the human body. Horizon looks at their manufacture and functions.

  • S1966E14 Genes in Action

    • July 3, 1966
    • BBC Two

    An eighteen-foot-high model of a ' chromosome puff ' has just been unveiled in Chicago. Some chromosomes ' puff' when they undergo intense genetic activity, and this model is based on the latest research into the microscopic world of the gene. The model was filmed under construction and after completion, and Professor John Maynard Smith of the University of Sussex and Dr. John Curdon of the University of Oxford discuss the implications of the sort of genetic research which the model exemplifies. Also: Scientists and War - Sir Solly Zuckerman talks about his new book Scientists and War which outlines his views on the impact of science on affairs civil and military.

  • S1966E15 The Lonely Children

    • July 17, 1966
    • BBC Two

    They're called aloof, self-absorbed. They don'meet your eyes, won'be cuddled, can'play with other children. They are autistic children. This programme looks at this heart-rending condition and examines the way in which medicine is studying these children.

  • S1966E16 Man of Science

    • July 31, 1966
    • BBC Two

    H. G. Wells is best known as a writer of science romances and a man who, with remarkable accuracy, predicted future technological developments from the tank to space-shots. Behind the writer lay the shadow of the scientist he nearly became. Tonight's programme looks at the other side of this complex figure. Also: 'Nature' Tomorrow - An interview with John Maddox , the new editor of one of the world's most influential scientific journals, Nature, in which he discusses his ideas for bringing up-to-date the magazine's coverage of scientific events.

  • S1966E17 The Dolphins that Joined the Navy

    • September 11, 1966
    • BBC Two

    American Navy scientists are engaged in an intensive programme of research on the most intelligent and friendly of sea creatures, the dolphin. and in particular on its almost uncanny powers of navigation.

  • S1966E18 M.I.T's ABC

    • September 25, 1966
    • BBC Two

    One of the U.S.A.'s Meccas for scientists and engineers, the Massachusetts Institute of Technology, has started up courses in art because some of its professors feel ' most students don't know their ABCs in visual terms.' Do British science students know their ABCs? Also: The Disturbed Child - Many parents know that their child has a problem but do not have the necessary insight to deal with it: the problem might be as apparently simple as bed-wetting or stammering. A woman psychiatrist uses drawings and paintings to reveal children's characters and show the results of therapy.

  • S1966E19 Ten Years in the Antarctic

    • October 10, 1966
    • BBC Two

    Horizon looks at the scientific research being carried out in the Antarctic under the guidance the Scientific Committee for Antarctic Research (SCAR) which was formed in 1856.

  • S1966E20 The Athlete

    • October 24, 1966
    • BBC Two

    Is there any limit to Improvements In human athletic performance? If so, what? Roger Bannister the first four-minute miler discusses his performances In tonight's programme with physiologists and psychiatrists who make their predictions

  • S1966E21 From Peenemünde to the Moon

    • November 7, 1966
    • BBC Two

    If U.S. hopes are fulfilled the tremendous power of the Saturn IB rocket motor should, within a few weeks, lift a three-man spacecraft to orbit the earth. Wernher von Braun, the German V2 rocket engineer who played a critical part in the development of U.S. rocketry, appears in a report on 700 years of rocket science and its attempt to realise a space travel dream.

  • S1966E22 Sex-Change?

    • November 21, 1966
    • BBC Two

    Sex-change frequently makes press headlines along with confusing reports of the physiology involved. The withdrawal of five gold-medal-winning women athletes from this year's European Championships, supposedly to avoid the recently introduced ' sex checks,' has raised the question again. What does ' sex-change ' mean? Does it, in fact, happen? In one of tonight's items Horizon looks at this complex psychological and physiological subject.

  • S1966E23 The Structure of Life

    • December 5, 1966
    • BBC Two

    For their work on penicillin, the drug which saved so many lives in World War II, three men were awarded the Nobel Prize. Tonight's film looks at one of these men, Professor Ernst Chain. It also looks at the remarkable growth during this century of biochemistry and at some of the unusual research in progress in Professor Chain's new £1,500,000 Biochemistry Department at Imperial College.

  • S1966E24 Hand Me My Sword, Humphrey

    • December 25, 1966
    • BBC Two

    It is Christmas Day in the house of Hastings. The time (the 1830s), the place (a suburban Victorian home). and the atmosphere (after the pudding with the children waiting to be entertained) are ripe for father to stun his audience with his knowledge of the world of natural philosophy. It is a world of exploding biscuit tins, unpredictable hard-boiled eggs, singing drainpipes, and enough amateur science to make young enthusiasts reach for their bunsen burners, and mothers for their smelling salts

Season 1967

  • S1967E01 Sons of Cain

    • January 17, 1967
    • BBC Two

    Horizon probes into whether aggressiveness is our birthright and can society live without violence?

  • S1967E03 How Best to Make a Man, How Best to Make a Scientist

    • February 17, 1967
    • BBC Two

    In this episode, Horizon looks at a new school of mathematics and physics near Novosibirsk in Siberia, Russia. This school uses a competition held for Russian school children to qualify new students.

  • S1967E04 Dynamo - The Life of Michael Faraday

    • February 28, 1967
    • BBC Two

    Horizon profiles the life of the greatest physical scientist: Michael Faraday. Crucial events of his scientific career in science are reconstructed.

  • S1967E05 Migraine

    • March 14, 1967
    • BBC Two

    Horizon looks at some research recently carried out into the migraine headache and the means to provide treatment for it.

  • S1967E06 How Safe is Surgery?

    • March 28, 1967
    • BBC Two

    Horizon probes in the danger of germs and infection in the operating theater and the methods currently used to prevent contamination.

  • S1967E07 Sleep and Dreams

    • April 11, 1967
    • BBC Two

  • S1967E08 The Shape of War to Come

    • April 25, 1967
    • BBC Two

    Christopher Chataway presents a program which looks at whether biological and chemical warfare will supercede conventional weapons of war and at the ethical and political implications of such unconventional weapons.

  • S1967E09 Memory

    • May 9, 1967
    • BBC Two

    Horizon explores the part of the human brain devoted to memory.

  • S1967E10 Masters of the Desert

    • May 23, 1967
    • BBC Two

    Horizon reports on the methods being used to irrigate the Negev Desert, making it fertile based on the methods of ancient civilizations.

  • S1967E11 Cancer - The Smoker's Gamble

    • June 20, 1967
    • BBC Two

    Horizon looks at the links between smoking and cancer. Presented by Christopher Chataway.

  • S1967E12 Science and the Supernatural

    • July 4, 1967
    • BBC Two

    Horizon explores the work in the developmental field of Extra Sensory Perception (ESP).

  • S1967E13 Hypnosis

    • July 18, 1967
    • BBC Two

    Horizon explores the misconceptions that people have about what hypnosis is and looks at the medical implications of what it can do.

  • S1967E14 The War of the Boffins

    • September 12, 1967
    • BBC Two

    Horizon looks at the secret war between scientists from Germany and scientists from Britain during the second world war.

  • S1967E15 Aspects of Alcohol

    • September 26, 1967
    • BBC Two

    Horizon looks at a Scottish chemist's unusual application for whisky: a measure of radioactive carbon 14 used for determining how old an object is.

  • S1967E16 Lords of the Sea

    • October 10, 1967
    • BBC Two

    Horizon looks into how man is learning to survive in the oceans.

  • S1967E17 Will Art Last?

    • October 24, 1967
    • BBC Two

    In this episode, Horizon reports on new materials that are being used as art media by gaining inspiration from factory and industrial processes.

  • S1967E18 Air Safety - The Unknown Factor

    • November 7, 1967
    • BBC Two

    Horizon investigates air navigation and flight safety.

  • S1967E19 The Life and Death of the Pine Processionary

    • November 21, 1967
    • BBC Two

    An extraordinary and beautiful film shows the hazardous existence of a caterpillar Thaumetopoea Pityocampa. Sometimes joyful, sometimes pitiful and seemingly innocuous,' the Pine Processionary, as it is more familiarly called, is a wonderful subject for the French film director Robert Enrico ; but the wake of destruction it leaves behind in its struggle for survival has forced French biologists to declare war on the species.

  • S1967E20 Koestler on Creativity

    • December 5, 1967
    • BBC Two

    Arthur Koestler talks about the psychological theories of creativity and the role of the mind in science and art.

  • S1967E21 The World of Ted Serios

    • December 12, 1967
    • BBC Two

    Horizon looks into the life of Ted Serios who claims to have psychic powers and to be able to project images onto film using only his thoughts.

  • S1967E22 Professor in Toyland

    • December 24, 1967
    • BBC Two

    Prof. J. Sumner-Miller asks some questions for enquiring minds on walking, singing, swimming, and flying toys.

Season 1968

  • S1968E01 An Ingenious Man - Sir H. John Baker

    • January 2, 1968
    • BBC Two

    Horizon reports on Prof. Sir John Baker who is a distinguished British engineer, tracing his career beginning from his early work on airships.

  • S1968E02 Man's Best Friend

    • January 30, 1968
    • BBC Two

    This episode covers interviews with surgeons and research workers discussing the need for animal experimentation in medical work.

  • S1968E03 Once a Junkie

    • February 13, 1968
    • BBC Two

    Horizon investigates addiction to drugs and the effects.

  • S1968E04 Towns, Traffic and Tomorrow

    • February 27, 1968
    • BBC Two

    Horizon explores the problem of increasing traffic in Britain.

  • S1968E05 The Man Makers

    • March 12, 1968
    • BBC Two

    In this episode, Horizon looks into the advances in medical science.

  • S1968E06 Man in Search of Himself

    • March 26, 1968
    • BBC Two

    This episode presents the view by G. M. Carstairs, social psychiatrist, about the pleasures and problems of life in Britain in 1968.

  • S1968E07 Investigating Murder

    • April 9, 1968
    • BBC Two

    Horizon looks into modern methods of crime investigation.

  • S1968E08 The Equation of Murder

    • May 7, 1968
    • BBC Two

    Horizon follows reporter Paul Ferris as he examines the causes and motitives for murder.

  • S1968E09 The Lindemann Enigma

    • September 12, 1968
    • BBC Two

    This is the story of the life and career of Winston Churchill's scientific advisor, Lord Cherwell, during World War II.

  • S1968E10 From Field to Factory

    • September 19, 1968
    • BBC Two

    Horizon explores "factory farming" techniques for chickens and other livestock.

  • S1968E11 Comfort on Aging

    • September 26, 1968
    • BBC Two

    In this episode, Dr. Alex Comfort looks at the scientific evidence for old age and the problems caused by ageing.

  • S1968E12 Experiments in War

    • October 3, 1968
    • BBC Two

    Horizon investigates how science is used to enhance weapons of war, tactics, and strategy.

  • S1968E13 African Medicine

    • October 17, 1968
    • BBC Two

    In this episode, Horizon looks into controversial medicine practices in Nigeria.

  • S1968E14 The Broken Bridge

    • October 24, 1968
    • BBC Two

    This episode by Horizon is about Irene Kassorlas, who's new treatment for autism has produced positive results with mute children.

  • S1968E15 Children Without Words

    • October 31, 1968
    • BBC Two

    Horizon reports on speech and comprehension disorders in children, and how to educate them.

  • S1968E16 Computer Revolution

    • November 7, 1968
    • BBC Two

    Horizon explores how computers are changing our way of life.

  • S1968E17 The Doctor's Dilemma

    • November 14, 1968
    • BBC Two

    Horizon reports on the effects of the birth control pill on the body and how the pill can effect the changes in glucose metabolism.

  • S1968E18 In the Matter of Dr. Alfred Nobel

    • November 21, 1968
    • BBC Two

    This is the fictional drama about the evidence for and against the charges that Dr. Alfred Noble misused his invention of dynamite.

  • S1968E19 Wheels Within Wheels

    • November 28, 1968
    • BBC Two

    Horizon explores the possibility that our civilization as a whole can be viewed as a pattern based on the wheel.

  • S1968E20 Black Man, White Science

    • December 5, 1968
    • BBC Two

    In this episode, Horizon investigates the study of science by african americans.

  • S1968E21 Hidden World

    • December 12, 1968
    • BBC Two

    In this episode, Horizon reports on the exploration and survey of the oceans of the world.

  • S1968E22 The Talgai Skull

    • December 19, 1968
    • BBC Two

    Prof. N.W.G. MacIntosh investigates the origin of the Talgai Skull found in Australia in 1886.

  • S1968E23 Phantasmagoria: The Magic Lantern

    • December 24, 1968
    • BBC Two

    In this episode of Horizon, Michael Balfour invites us to share in the mystery and magic of the "Magic Lantern".

Season 1969

  • S1969E01 Inside Every Fat Man

    • January 2, 1969
    • BBC Two

    Horizon probes into the problems of obesity and investigates cures for obesity using diets and drugs.

  • S1969E02 If Only They Could Speak

    • January 9, 1969
    • BBC Two

    A report by Horizon examining animal intelligence and looking at the reasons why no other animal has matched man in mental ability.

  • S1969E03 The Miraculous Wonder: The Human Eye

    • January 16, 1969
    • BBC Two

    Horizon investigates the importance of the eye, diseases of the eye, and current research on sight.

  • S1969E04 The Years of the Locust

    • January 23, 1969
    • BBC Two

    In this episode, Horizon reports on how in the last 2 years, the desert locust has been breeding in Southern Arabia by the Red Sea.

  • S1969E05 The Gifted Child

    • January 30, 1969
    • BBC Two

    Horizon reports on the problems associated with raising and educating children of very high intelligence.

  • S1969E06 The Last of the Polymaths

    • February 6, 1969
    • BBC Two

    This episode is a biography of the late professor J. B. S. Haldane whose life is described by his family, friends, and critics.

  • S1969E07 Music and the Mind

    • February 13, 1969
    • BBC Two

    Horizon looks into music therapy used in the treatment of mental disorders.

  • S1969E08 Report on V.D.

    • February 20, 1969
    • BBC Two

    This investigation by Horizon centers on the problems caused by venerial disease both in detection and cure.

  • S1969E09 A True Madness

    • February 22, 1969
    • BBC Two

    Horizon investigates the problem of schizophrenia and discusses its causes and the ways in which it can be treated.

  • S1969E10 Extra Sensory Perception

    • February 27, 1969
    • BBC Two

  • S1969E11 The Drift from Science

    • March 6, 1969
    • BBC Two

    This report by Horizon examines the reason for a fall in the percentage of school children doing science.

  • S1969E12 Powers of Persuasion

    • March 13, 1969
    • BBC Two

    This episode of Horizon is about advertising, looking at how it works and the application of scientific methods to persuade us to buy.

  • S1969E13 The View from Space

    • March 20, 1969
    • BBC Two

    Horizon looks into what man has seen and done during 10 years of space exploration.

  • S1969E14 The Unborn Patient

    • March 27, 1969
    • BBC Two

    Horizon investigates new medical techniques to diagnose and treat unborn infants leading to a higher survival rate.

  • S1969E15 King Solomon's Garden

    • April 10, 1969
    • BBC Two

    This episode of Horizon looks at the communication systems of animals.

  • S1969E16 Muck Today, Poison Tomorrow

    • April 24, 1969
    • BBC Two

    Horizon investigates pollution problems in Britain with sewage and industrial wastes, and at the health risks associated with the pollution.

  • S1969E17 Shark

    • May 1, 1969
    • BBC Two

    In this episode, Horizon examines our attempts to understand one of the oldest inhabitants of the sea, the shark.

  • S1969E18 Technology and Self-Determination

    • May 15, 1969
    • BBC Two

    Sebastian Z. de Ferranti gives the Royal Society lecture for 1969 on technological development.

  • S1969E19 After Apollo

    • May 22, 1969
    • BBC Two

    The US spent $40 billion to put man on the moon, yet the real objectives of the space program remain obscure.

  • S1969E20 Discovery

    • May 29, 1969
    • BBC Two

    Horizon reports on the research being carried out in the fields of botany, astronomy, biochemistry, meteorology, and zoology.

  • S1969E21 Machines and People

    • June 5, 1969
    • BBC Two

  • S1969E22 Science on Safari

    • September 15, 1969
    • BBC Two

    The Honorable A. W. Benn addresses young art and technology students on the implications of increased technology.

  • S1969E23 The Problem of Pain

    • September 29, 1969
    • BBC Two

    In this episode, Horizon reports on the problems of pain, and the theory put forward that pain is closely connected with personality.

  • S1969E24 Four Fast Legs and a Nose

    • October 6, 1969
    • BBC Two

    Horizon explores "man's best friend", the dog, and examines its origins and how its special relationship with men came about.

  • S1969E25 Father of the Man

    • October 13, 1969
    • BBC Two

    Horizon investigates surveys being carried out on British children to test Freud's theories.

  • S1969E26 Master of the Microscope

    • October 20, 1969
    • BBC Two

    In this episode, Roman Vishniac talks about his study of living things in their natural habitat as his life's work.

  • S1969E27 C.E.R.N.

    • October 27, 1969
    • BBC Two

    Horizon reports on the research into high-energy physics carried on at C.E.R.N. laboratory located near Geneva, Switzerland.

  • S1969E28 Snap, Crackle and Bang

    • November 3, 1969
    • BBC Two

  • S1969E29 Cancer Now

    • November 10, 1969
    • BBC Two

    A report on current research into cancer and the subsequent knowledge and problems it brings.

  • S1969E30 There's a Rhino in My Sugar

    • November 17, 1969
    • BBC Two

  • S1969E31 Fit to Live

    • November 24, 1969
    • BBC Two

    Horizon investigates the limits of survival under extreme and normal enviromental conditions.

  • S1969E32 Don't Cackle, Lay Eggs

    • December 1, 1969
    • BBC Two

    Horizon reports on the development of the Dutch nation's continuing fight against the encroachment of the sea.

  • S1969E33 How Much Do You Drink?

    • December 8, 1969
    • BBC Two

    Horizon investigates how drinking affects human behavior.

  • S1969E34 A Game of War

    • December 15, 1969
    • BBC Two

    Horizon covers a simulated war game of a Middle East crisis, with different teams playing the roles of the major parties involved.

  • S1969E35 Bread

    • December 22, 1969
    • BBC Two

    Horizon explores the problem of feeding the growing world population.

  • S1969E36 For the Safety of Mankind

    • December 29, 1969
    • BBC Two

    Horizon investigate the dilemma of whether a scientist should put his loyalty to mankind before his loyalty to his country.

Season 1970

  • S1970E01 Just Another World

    • January 5, 1970
    • BBC Two

    This episode of Horizon centers on the study of the moon rock samples brought back to the earth by the Apollo 11 flight to the moon.

  • S1970E02 Henry Royce, Mechanic

    • January 12, 1970
    • BBC Two

    Horizon investigates the history of the life and work of Sir Henry Royce, co-founder of the firm Rolls Royce Royce.

  • S1970E03 A Disease of Our Time - Stress

    • January 19, 1970
    • BBC Two

    This is the first part of a two-part episode on diseases afflicting people today. Horizon looks at the issue of stress on the body.

  • S1970E04 A Disease of Our Time - Heart Attacks

    • January 26, 1970
    • BBC Two

    This is the second part of a two-part episode on diseases afflicting people today. Horizon looks at the causes of coronary heart disease and modern techniques of treatment and cure.

  • S1970E05 Sex and Sexuality

    • February 2, 1970
    • BBC Two

    Horizon exams the current scientific research into human sexual behavior.

  • S1970E06 Whose Coast?

    • February 16, 1970
    • BBC Two

    In this episode, Horizon reports on how much of the sea coast around Britain is becoming polluted.

  • S1970E07 A Much Wanted Child

    • February 23, 1970
    • BBC Two

    This episode deals with the problems of infertility and showing the investigations being carried out.

  • S1970E08 The Expert Witness

    • March 2, 1970
    • BBC Two

    Sir Bernard Spilsbury, a forensic pathologist, talks about the role of the scientific witness in the criminal courts.

  • S1970E09 After the Iron Age

    • March 9, 1970
    • BBC Two

    A look at some of the work carried out in Britain into the development of new materials for industry.

  • S1970E10 Let the Therapy Fit the Crime

    • March 16, 1970
    • BBC Two

    This episode of Horizon looks at the question of the treatment of criminals in Britain.

  • S1970E11 The World Outside

    • March 23, 1970
    • BBC Two

    Horizon reports on the Mental Health Service in Britain.

  • S1970E12 In the Beginning was the Word

    • March 30, 1970
    • BBC Two

    This episode surrounds the two channels of human communication - verbal and non-verbal.

  • S1970E13 The Drifting of the Continents

    • April 13, 1970
    • BBC Two

    A Horizon investigation into the research done in Britain and the USA to support the 'Continental Drift' theory.

  • S1970E14 A Case of Priority

    • April 20, 1970
    • BBC Two

    This episode of Horizon looks at the National Health Service of Britain and the enormous demands that are imposed on it.

  • S1970E15 The Fretful Elements

    • April 27, 1970
    • BBC Two

    This report by Horizon looks into meteorological research in Britain and America.

  • S1970E16 One Man's Meat

    • May 11, 1970
    • BBC Two

    An investigation by Horizon reveals information about the use of artificial additives and preservatives in the manufacture of modern processed foods.

  • S1970E17 Only Skin Deep

    • July 6, 1970
    • BBC Two

    On this episode of Horizon, the science behind the cosmetic industry and the social and psychological importance of beauty and fragrance is revealed.

  • S1970E18 Wolves and Wolfmen

    • July 13, 1970
    • BBC Two

    This a a report by Horizon on the research in the USA and Canada into the habits of the wolf in its natural surroundings and in captivity.

  • S1970E19 A Measure of Uncertainty

    • August 10, 1970
    • BBC Two

    Horizon explores the use and role of statistics in modern society and how they are needed for planning.

  • S1970E20 The Manhunters

    • August 17, 1970
    • BBC Two

    Horizon reveals new evidence found by archaeologists that have now traced our origins back to the extinct ape man of Africa.

  • S1970E21 Don't Get Sick in America

    • August 24, 1970
    • BBC Two

    In this episode, Horizon reports on how the TV series "Man and Science Today" compares the British National Health System with the private health system in the USA.

  • S1970E22 Crown of Thorns

    • August 31, 1970
    • BBC Two

    The population explosion of the Crown of Thorns starfish is investigated by Horizon.

  • S1970E23 Noah's Ark in Kensington

    • September 7, 1970
    • BBC Two

    Horizon brings you the history and modern day functions of the Natural History museum in Kensington, Britain.

  • S1970E24 Virus

    • September 14, 1970
    • BBC Two

    This is an episode on problems dealing with viral diseases such as measles.

  • S1970E25 Water, Water

    • September 21, 1970
    • BBC Two

    Horizon looks at the work of scientists as they unravel the problems of providing us with water.

  • S1970E26 All Creatures Great and Small

    • September 28, 1970
    • BBC Two

    In this story, Horizon investigates the issue of controversial animal experiments between anti-vivisectionists and scientists.

  • S1970E27 Child for a Lifetime

    • October 5, 1970
    • BBC Two

    Horizon reports on the future of 30,000 children in Britain that are mentally retarded.

  • S1970E28 Something for Our Children

    • October 12, 1970
    • BBC Two

    Horizon reports on the work of the British Nature Conservancy and how scientists are trying to find out about nature.

  • S1970E29 Million Ton Tanker

    • November 2, 1970
    • BBC Two

    This episode of Horizon reports on the revolution in the size of oil tankers showing present and future planned methods of construction.

  • S1970E30 The Insect War

    • November 9, 1970
    • BBC Two

    Horizon looks at problems caused by the rapid reproduction rate of insects and their increasing resistance to pesticides.

  • S1970E31 The Savage Mind

    • November 16, 1970
    • BBC Two

    Horizon reports on Professor Claude Levi-Strauss who has been studying and analyzing the so-called primitive man for more than 30 years.

  • S1970E32 Tanks

    • November 23, 1970
    • BBC Two

    This episode of Horizon investigates the history of tanks in the last fifty years and the dominant role they have played in land warfare.

  • S1970E33 Mind the Machine

    • November 30, 1970
    • BBC Two

    In this story, Horizon investigates the artificial intelligence of computers by watching a chess game.

  • S1970E34 Square Pegs

    • December 7, 1970
    • BBC Two

    Horizon examines some of the techniques used by the boom industry of Management Selection.

  • S1970E35 The City that Waits to Die

    • December 14, 1970
    • BBC Two

    Horizon investigates the work of geologists and seismologists trying to predict the date of the next great earthquake in San Francisco, California.

  • S1970E36 The Man who Talks to Frogs

    • December 21, 1970
    • BBC Two

    Horizon reports on some of the pure scientific research work carried out at the Smithsonian Tropical Research institute.

  • S1970E37 The Gargantuan Triumph of Science

    • December 28, 1970
    • BBC Two

    This episode by Horizon is a dramatized reconstruction from original transcripts of the inquiry into the Tay Bridge disaster.

Season 1971

  • S1971E01 Wildlife - The Last Great Battle

    • January 4, 1971
    • BBC Two

    In this episode, Horizon looks a the efforts of zoos to save animal species from extinction by breeding enough to ensure their survival in captivity

  • S1971E02 Great Ormond Street

    • January 18, 1971
    • BBC Two

    In this episode, Horizon looks at the renowned British hospital for children, Great Ormond Street, and the Institute of Child Health.

  • S1971E03 A Bulldozer Through Heaven

    • January 25, 1971
    • BBC Two

    Horizon explores the island of New Guinea and its cultural changes going on there.

  • S1971E04 Rumors of War

    • February 1, 1971
    • BBC Two

    This episode of Horizon looks at the growing arsenal of nuclear weapons over the last 25 years and the effects it has on the arms race.

  • S1971E05 I'm Dependent - You're Addicted

    • February 15, 1971
    • BBC Two

    This episode investigates the facts about drug abuse and experimental work undertaken in this area.

  • S1971E06 Kuru - To Tremble With Fear

    • February 22, 1971
    • BBC Two

    Kuru is a unique disease of the people of New Guinea. Horizon goes with Prof. E. J. Field to find out why.

  • S1971E07 Due to a Lack of Interest, Tomorrow Has Been Canceled

    • March 8, 1971
    • BBC Two

    Horizon interviews ecologists that claim that man is irrevocably destroying its habitat.

  • S1971E08 What Kind of Doctor?

    • March 15, 1971
    • BBC Two

    Horizon investigates medical student training at the St. Thomas hospital in London, England.

  • S1971E09 Nice Sort of Accident to Have

    • March 22, 1971
    • BBC Two

    Horizon explores the causes, and looks for way to prevent car accidents

  • S1971E10 The Wood

    • April 5, 1971
    • BBC Two

    This report by Horizon looks at the long term ecological study of the forest at Wytham Wood, Oxon, in England.

  • S1971E11 The Measure of a Man

    • April 12, 1971
    • BBC Two

    In 1971, Horizon reviews the life and work of Prof. Hans Eysnck, the most controversial psychologists of the time.

  • S1971E12 Three Score Years and Then?

    • April 26, 1971
    • BBC Two

    This report by Horizon explores care for the aged, for both medical and welfare services in Britain.

  • S1971E13 Darwin's Bulldog

    • May 3, 1971
    • BBC Two

    Horizon reports on the famous protagonist of "The Origin of Species," Thomas Henry Huxley.

  • S1971E14 The Secret

    • May 10, 1971
    • BBC Two

    This episode of Horizon examines how cells organize to become complex organs, and bodies.

  • S1971E15 What Every Girl Should Know

    • May 17, 1971
    • BBC Two

  • S1971E16 Tastes of Food to Come

    • May 24, 1971
    • BBC Two

    Horizon reports on food technology now experimenting with meat substitutes.

  • S1971E17 Looking for a Happy Landing

    • May 31, 1971
    • BBC Two

  • S1971E18 A Case of Depression

    • June 7, 1971
    • BBC Two

    Horizon investigates how to treat depressive illneses.

  • S1971E19 The Total War Machine

    • June 14, 1971
    • BBC Two

    This episode of Horizon reports on the development of the aircraft bomber throughout periods of war.

  • S1971E20 The Dinosaur Hunters

    • June 21, 1971
    • BBC Two

    Horizon explores the field of palaeontology, the study of dinosaurs.

  • S1971E21 Your Country Needs You

    • September 27, 1971
    • BBC Two

    This episode of Horizon looks at Britain's civil defense program, and to see if it is adequate in the event of a nuclear war.

  • S1971E22 Rheumatism

    • October 4, 1971
    • BBC Two

    Horizon investigates rheumatism, and looks at why this disease is under-researched.

  • S1971E23 If at First You Don't Succeed...You Don't Succeed

    • October 11, 1971
    • BBC Two

    Can new born babies solve complex problems? Horizon works with psychologists to see how they measure this capacity.

  • S1971E24 One Liverpool or Two?

    • October 18, 1971
    • BBC Two

    Do city planners in Liverpool have unrealistic expectations? Horizon looks into the development and planning process of Liverpool, England.

  • S1971E25 Rutherford, Cavendish

    • October 25, 1971
    • BBC Two

    This is a two part episode of Horizon. First, Horizon looks at the life of centenary Ernest Rutherford, followed by a report of the Cavendish Labratory in Cambridge, England.

  • S1971E26 The Fierce People

    • November 1, 1971
    • BBC Two

    Horizon explores a primitive tribe of Yanomamo Indians living in southern Venezula.

  • S1971E27 The Men Who Painted Caves

    • November 15, 1971
    • BBC Two

    This episode of Horizon looks in the ancient cave paintings found in France.

  • S1971E28 The Crab Nebula

    • November 22, 1971
    • BBC Two

    This episode of Horizon reports on how the Crab Nebula was discovered, and continuing observation of the space encounter.

  • S1971E29 Can Venice Survive?

    • November 29, 1971
    • BBC Two

    Horizon reports on the continuing problem of the city of Venice, Italy sinking into the sea.

  • S1971E30 Willingly to School

    • December 6, 1971
    • BBC Two

    This report by Horizon is about Prof. Hean Piaget and her child center education theory.

  • S1971E31 Periscope War

    • December 20, 1971
    • BBC Two

    Horizon presents the history of the submarines, from pre-World War I to today's nuclear powered submarines.

  • S1971E32 Patently Absurd

    • December 27, 1971
    • BBC Two

    This episode of Horizon investigates strange new inventions.

Season 1972

  • S1972E01 The Missing Link

    • January 3, 1972
    • BBC Two

    In this episode of Horizon, you find out how feasible it is to build a 35 mile long tunnel between Britain and France.

  • S1972E02 Navajo - The Last Red Indians

    • January 10, 1972
    • BBC Two

    Horizon explores the American Navajo indian tribe of New Mexico, in the United States.

  • S1972E03 How Much Do You Smell?

    • January 17, 1972
    • BBC Two

    Why do humans have such a poor sense of smell as compared to animals? Horizon investigates why.

  • S1972E04 Parasite of Paradise

    • January 31, 1972
    • BBC Two

    This story by Horizon reports on Malaria in the country of Gambia, in West Africa.

  • S1972E05 The Day it Rained Periwinkles

    • February 7, 1972
    • BBC Two

    Horizon investigates reports of strange phenomena and about what the scientific theory is about these phenomena.

  • S1972E06 Are You Doing This for Me, Doctor?

    • February 14, 1972
    • BBC Two

    Horizon explores if a doctor's treatment of the patient is always in the best interest of the patient.

  • S1972E07 How They Sold Doomsday

    • February 21, 1972
    • BBC Two

    In this episode, Horizon looks the the ecological movement, and the resistance against the movement in Britain, and the USA.

  • S1972E08 For Love or Money

    • February 28, 1972
    • BBC Two

    In this report by Horizon, the effect of boring jobs on industrial relations is looked at, along with work and job satisfaction.

  • S1972E09 Whales, Dolphins and Men

    • March 6, 1972
    • BBC Two

    Horizon looks at the life of whales and dolphins, and how they interact with man.

  • S1972E10 What is Race?

    • March 13, 1972
    • BBC Two

    Horizon investigates the various conceptions of "race" that have arisen since the 17th century.

  • S1972E11 Man-Made Lakes in Africa

    • March 20, 1972
    • BBC Two

    Horizon investigates the use of hydroelectric power in Africa, at Lake Kariba, Lake Volta, and Lake Nasser.

  • S1972E12 Survival in the Sahara

    • March 27, 1972
    • BBC Two

    This episode of Horizon follows the expedition of two German naturalists exploring the Northwestern desert of the Sahara in Africa.

  • S1972E13 Mind Over Body

    • April 10, 1972
    • BBC Two

    This story by Horizon is about American research into techniques for controlling bodily functions with the mind.

  • S1972E14 Out of Volcanoes

    • April 17, 1972
    • BBC Two

    In this report, Horizon looks at the various aspects of volcanoes and explaining the views of some vulcanologists.

  • S1972E15 The Wizard Who Spat on the Floor

    • May 1, 1972
    • BBC Two

    Horizon presents a study of Thomas Alva Edison and his achievements as an inventor.

  • S1972E16 Rail Crash

    • May 8, 1972
    • BBC Two

    Horizon reviews the history of train accidents and the new safety precautions to prevent them.

  • S1972E17 Do You Dig National Parks?

    • May 22, 1972
    • BBC Two

    Horizon investigates the threat to the Snowdonia National Park in Britain, from mining companies.

  • S1972E18 Sorry I Opened My Mouth

    • June 12, 1972
    • BBC Two

    Horizon reports on modern research in the prevention of tooth decay.

  • S1972E19 The Way We Move

    • July 3, 1972
    • BBC Two

    How do muscles contract and how are they are controlled from the brain through nerve fibers are the subjects of this Horizon episode.

  • S1972E20 The Life that Lives on Man

    • July 10, 1972
    • BBC Two

    This episode of Horizon explores bacteria and other creatures that live on our skin and in our hair.

  • S1972E21 Sex Can Be a Problem

    • July 24, 1972
    • BBC Two

    In this episode by Horizon, we take a look at sexual problems, particularly for impotence, frigidity, and premature ejaculation.

  • S1972E22 The Surgery of Violence

    • July 31, 1972
    • BBC Two

    Horizon explores the development and techniques of brain surgery from the 1950's to present-day in Britain and the USA.

  • S1972E23 Hospital, 1922

    • October 12, 1972
    • BBC Two

    Horizon reconstructs a day in the life of the old Charing Cross Hospital in Britain just fifty years ago.

  • S1972E24 When Polar Bears Swam in the Thames

    • October 19, 1972
    • BBC Two

    This episode of Horizon looks the how the ice age physically shaped the British landscape.

  • S1972E25 The Making of the English Landscape

    • October 26, 1972
    • BBC Two

    This episode of Horizon illustrates the ideas of Prof. W.G. Hoskins on the development of the English landscape from Iron Age times to the present.

  • S1972E26 Shadows of Bliss

    • November 2, 1972
    • BBC Two

    Horizon reports that High Energy Physics shows a pattern of thought that challenges the very roots of commonplace belief.

  • S1972E27 Billion Marsh

    • November 9, 1972
    • BBC Two

    This episode of Horizon is about the east coast marshes of America, called the "Wetlands" and the effects of urban development on the wildlife.

  • S1972E28 Do You Sincerely Want a Long Life?

    • November 16, 1972
    • BBC Two

    Horizon investigates the research that is going into the ageing process to find out its causes and possible prevention.

  • S1972E29 The Making of a Natural History Film

    • November 23, 1972
    • BBC Two

    This epidsode of Horizon reports on how a group of zoologists at Oxford Scientific Films in England makes films.

  • S1972E30 Fire

    • November 30, 1972
    • BBC Two

    Horizon documents fire prevention, and fire fighting.

  • S1972E31 Alaskan Pipe Dream

    • December 7, 1972
    • BBC Two

    This episode of Horizon centers on the exploitation of oil in Alaska, and the effects of it on the Eskimoes and the local wildlife.

  • S1972E32 Their Life in Your Hands

    • December 21, 1972
    • BBC Two

    Horizon reports on people suffering from kidney diseases and the current forms of treatment.

  • S1972E33 Navigating Europe

    • December 28, 1972
    • BBC Two

    Horizon documents how in Europe, they are using water canals for industrial transport, as an alternative to roads.

Season 1973

  • S1973E01 Epidemic

    • January 4, 1973
    • BBC Two

    Horizon examines sources of infection that have, and could still, cause epidemics in Britain.

  • S1973E02 Worlds in Collision

    • January 11, 1973
    • BBC Two

    This episode of Horizon features Immanuel Velikovsky and his theories about the solar system.

  • S1973E03 The Military Necessity

    • January 18, 1973
    • BBC Two

    Horizon examines the doctrines and military strategies of the rival alliances of NATO and the Warsaw Pact countries.

  • S1973E04 The Curtain of Silence

    • January 25, 1973
    • BBC Two

    Horizon looks into the problem of deafness in Britain.

  • S1973E05 Crime Lab

    • February 1, 1973
    • BBC Two

  • S1973E06 When the Breeding Has to Stop

    • February 8, 1973
    • BBC Two

  • S1973E07 Science is Dead, Long Live Science

    • February 15, 1973
    • BBC Two

    In this documentary by Horizon, we look at chemical warfare and the associated environmental problems that have given science a bad name.

  • S1973E08 ...And Where Will the Children Play?

    • March 1, 1973
    • BBC Two

    Horizon explores how to make the future livable and prevent the effects of urban sprawl.

  • S1973E09 Acupuncture: A Chinese Puzzle

    • March 8, 1973
    • BBC Two

    Horizon explains acupuncture theories and examines its validity in modern medicine.

  • S1973E10 What Time is Your Body?

    • March 22, 1973
    • BBC Two

    Horizon illustrates the Circadian Cycle of your body clock as it relates to physical and mental efficiency.

  • S1973E11 Survival of the Weakest

    • April 5, 1973
    • BBC Two

    In this episode, Horizon investigates the chances of survival and chances of a normal life for babies who are born underweight.

  • S1973E12 Red Sea Coral and the Crown of Thorns

    • April 12, 1973
    • BBC Two

    This Horizon documentary shows the work of the Cambridge Coral Starfish Research Group off of Port Sudan in the Red Sea.

  • S1973E13 Lumbered With Back-Ache!

    • April 26, 1973
    • BBC Two

    In this report, Horizon studies the problem of backache and investigates some remarkable new spine research.

  • S1973E14 Airport

    • May 3, 1973
    • BBC Two

    Horizon covers Heathrow Airport in England and in particular, the work which is being done to make it safe.

  • S1973E15 Do You Remember the Memory Man?

    • May 17, 1973
    • BBC Two

    Horizon looks at the phenomena of memory and some recent discoveries about it made by scientists.

  • S1973E16 What a Waste!

    • May 24, 1973
    • BBC Two

    Horizon investigates the various ways of dealing with the growing problem of garbage.

  • S1973E17 The Laws of the Land

    • June 7, 1973
    • BBC Two

    In the episode, Horizon investigates modern intensive farming methods.

  • S1973E18 Do We Really Need the Railways?

    • June 14, 1973
    • BBC Two

    Horizon takes a realistic look at the new ideas and technology threatening Britain's railway system.

  • S1973E19 The Telly of Tomorrow

    • June 21, 1973
    • BBC Two

    In this Horizon documentary, it deals with the expansion of television in Britain and the USA, especially with the growth of cable television.

  • S1973E20 The Rat Man

    • June 28, 1973
    • BBC Two

    A dramatised reconstruction of Dr Freud's treatment of an obsessive neurotic who is frustrated, suicidal and terrified that rats are going to eat his father and girlfriend.

  • S1973E21 How Does It Hurt?

    • July 5, 1973
    • BBC Two

    In this episode of Horizon, you will find that many people suffer chronic pain and yet others cannot feel anything.

  • S1973E22 A Scientist Looks at Religion

    • August 9, 1973
    • BBC Two

    This report by Horizon examines the work of Sir Alister Hardy who has set up a research unit to examine religious experience.

  • S1973E23 In Search of Konrad Lorenz

    • September 24, 1973
    • BBC Two

    Horizon presents a portrait of Konrad Lorenz and a review of his career and personal interests.

  • S1973E24 Stretch Up Tall

    • October 1, 1973
    • BBC Two

    This episode of Horizon takes a look at the medical and educational treatment of spastics in Britain.

  • S1973E25 Gilding the Lily

    • October 8, 1973
    • BBC Two

    Horizon presents a documentary on the developments in botany resulting in new flowers and the mass production of plants from single cells.

  • S1973E26 The Black Holes of Gravity

    • October 15, 1973
    • BBC Two

    In this episode of Horizon, Prof. John Taylor of the London University looks at the effects of gravity and the forces it exerts on the universe.

  • S1973E27 What's so Big About Us?

    • October 22, 1973
    • BBC Two

    Horizon investigates the plight of the Pygmies, on the verge of extinction as a racial group.

  • S1973E28 The Steadfast Tin Soldier

    • October 29, 1973
    • BBC Two

    This Horizon documentary is a biography of the Danish nuclear physicist, Nils Bohr, and his efforts to internationally control atomic energy.

  • S1973E29 Carry on Smoking

    • November 5, 1973
    • BBC Two

    Horizon looks at the rise in the number of people who smoke and the real health risks.

  • S1973E30 Air Crash Detective

    • November 26, 1973
    • BBC Two

    In this report, Horizon investigates why airplanes crash and shows accident investigators at work analyzing a film of an actual crash.

  • S1973E31 An Element of Mystery

    • December 3, 1973
    • BBC Two

    This episode of Horizon documents the sources, uses, and properties of the element mercury and examines its role in modern society.

  • S1973E32 Digging Up the Future

    • December 17, 1973
    • BBC Two

  • S1973E33 Kula, a Reason for Giving

    • December 24, 1973
    • BBC Two

    Horizon reports on the inhabitants islands east of New Guinea who have evolved a system of intercommunication called the Kula.

Season 1974

  • S1974E01 A Matter of Self-Defense

    • January 7, 1974
    • BBC Two

    This episode of Horizon explains how our body fights infections and cancers and brings us up-to-date on recent research in immunology.

  • S1974E02 Bird Brain - The Mystery of Bird Navigation

    • January 14, 1974
    • BBC Two

    This episode of Horizon is about various experiments on migratory birds and homing pigeons to try and discover how they navigate.

  • S1974E03 Never Too Late to Learn

    • January 21, 1974
    • BBC Two

    Horizon reports on the British Open University and how it operates.

  • S1974E04 The Great Fish Hunt

    • January 28, 1974
    • BBC Two

    Horizon investigates how Britain has hunted fish in the past and how improved fish catching techniques have severely reduced fish stocks.

  • S1974E05 Pedal Power

    • February 4, 1974
    • BBC Two

    This episode of Horizon is about the history of the bicycle and the possibility of it being able to ease the traffic problems in Britain.

  • S1974E06 The Writing on the Wall

    • February 11, 1974
    • BBC Two

    In this episode, Horizon looks at connections between crime and poor housing design in the USA.

  • S1974E07 Where Did the Colorado Go?

    • February 18, 1974
    • BBC Two

    Horizon investigates reports of abuse of the Colorado river in the USA.

  • S1974E08 The Future Goes Boom

    • March 4, 1974
    • BBC Two

    Horizon examines the British Hudson Institute's methods and predictions for the future of economics.

  • S1974E09 Fusion: The Energy Promise

    • March 11, 1974
    • BBC Two

    In this Horizon episode, we look at attempts by scientists to solve the energy crisis of future by building nuclear fusion reactors.

  • S1974E10 The First Ten Years

    • April 22, 1974
    • BBC Two

    In this report, Prof. John Maynard Smith looks back at some of the subjects Horizon has presented since 1964.

  • S1974E11 This Yankee Dodge Beats Mesmerism Hollow

    • April 29, 1974
    • BBC Two

    Horizon looks back at the discovery and the development of anesthesia.

  • S1974E12 The Hunting of the Quark

    • May 6, 1974
    • BBC Two

    This Horizon episode is about the search for quarks, thought to be the substance of which electrons, protons, and neutrons are made of.

  • S1974E13 A Noah's Ark for Europe

    • May 13, 1974
    • BBC Two

    Horizon investigates captive animal breeding to prevent extinction of animal species in the wild.

  • S1974E14 Bridges: When It Comes to the Crunch

    • June 3, 1974
    • BBC Two

    Horizon reports on bridges in Britain...how safe are they?

  • S1974E15 Search for Life

    • June 10, 1974
    • BBC Two

    Documentary about the origins of life which attempts to find out what happened in the one billion years before fossil evidence begins.

  • S1974E16 The Secrets of Sleep

    • June 10, 1974
    • BBC Two

    Horizon investigates the subject of sleep in Britain and the USA.

  • S1974E17 Who Needs Skills?

    • June 24, 1974
    • BBC Two

    In this episode of Horizon, you learn about transferring the basis of modern industry production from human skills to computer programmed machines.

  • S1974E18 Hills of Promise

    • July 1, 1974
    • BBC Two

    In this report, Horizon presents the state of hill farming in Wales.

  • S1974E19 The Race for the Double Helix

    • July 8, 1974
    • BBC Two

    This documentary of Horizon reports on the discovery of the structure of DNA in 1953 by Dr. Francis Crick and Prof. James Watson.

  • S1974E20 The Immigrant Doctors

    • July 15, 1974
    • BBC Two

    In this episode, Horizon reports on the rising number of imigrant doctors working in the National Health System of Britain.

  • S1974E21 Mines, Minerals and Men

    • July 22, 1974
    • BBC Two

    Horizon explores the technological and economic reasons for the mining revival in Britain.

  • S1974E22 What Price Steak?

    • July 29, 1974
    • BBC Two

    Horizon reports on the beef crisis and rising prices.

  • S1974E23 Listen and Be Loyal

    • August 5, 1974
    • BBC Two

    Horizon brings you a report by Tom Harrison on anti-nazi propaganda in Britain during World War II.

  • S1974E24 Adam or Eve?

    • August 12, 1974
    • BBC Two

    This episode of Horizon investigates the role that hormones play in the stages of mammalian sexual development.

  • S1974E25 An Unholy Scramble

    • September 2, 1974
    • BBC Two

    Horizon investigates some of the risks and problems involved in bringing oil from the North Sea ashore.

  • S1974E26 Do as You Are Told

    • October 28, 1974
    • BBC Two

    This report by Horizon explores how far people are prepared to suppress their own moral scruples in the face of necessity to obey authority.

  • S1974E27 The First Signs of Washoe

    • November 4, 1974
    • BBC Two

    Horizons reviews the scientific work of Americans in the field of research in communication with animals.

  • S1974E28 The Other Way

    • November 11, 1974
    • BBC Two

    Horizon presents Dr. Schumacher's theory that use of modern technology could make the working week a creative experience.

  • S1974E29 Joey

    • December 9, 1974
    • BBC Two

    This story by Horizon reconstructs the true life story of Joey Deacon.

  • S1974E30 The Neglected Harvest

    • December 16, 1974
    • BBC Two

    Horizon investigates the developments and research in forestry which may now help to overcome shortage of timber.

  • S1974E31 How on Earth Did They Do That?

    • December 23, 1974
    • BBC Two

    This documentary by Horizon reports on the development of cinematographic special effects from 1890's to date.

  • S1974E32 The Lysenko Affair

    • December 30, 1974
    • BBC Two

    Horizon presents a dramatized documentary on the rise to power of Trofim Denisovich Lysenko, a young Ukrainian agriculturalist.

Season 1975

  • S1975E01 The Cleanest Place in the World

    • January 6, 1975
    • BBC Two

  • S1975E02 The Killer Dust

    • January 20, 1975
    • BBC Two

    This investigative report by Horizon covers an investigation into the deaths of people who inhaled asbestos dust at Acre Mill, Yorkshire, England.

  • S1975E03 A Time to Be Born

    • January 27, 1975
    • BBC Two

    Horizon investigates the growing tendency in hospitals in Britain to induce childbirth by injecting the hormone oxytocin into expectant mothers.

  • S1975E04 The Unsafe Sea

    • February 10, 1975
    • BBC Two

    This episode of Horizon examines the problems of ship safety in the English Channel.

  • S1975E05 The Change of Life

    • February 17, 1975
    • BBC Two

    Horizon investigates the symptoms of menopause and the various degrees in which it occurs.

  • S1975E06 Project Fido

    • February 24, 1975
    • BBC Two

    This episode of Horizon shows the peril to man of the ever increasing dog population in the western world.

  • S1975E07 The Long, Long Walkabout

    • April 7, 1975
    • BBC Two

    This report by Horizon covers an investigation by a group of Australian scientists that looks into the origins and history of the Australian Aborigines.

  • S1975E08 The Overworked Miracle

    • April 14, 1975
    • BBC Two

    This report by Horizon describes the resistance to antibiotics, fast growing in all countries, and the dangers it could mean for the future.

  • S1975E09 Not the Cheapest, But the Best

    • April 21, 1975
    • BBC Two

    Horizon investigates the life and work of the great engineer, Isambard Kingdom Brunel.

  • S1975E10 A Spoonful of Roughage

    • April 28, 1975
    • BBC Two

    Horizon explores the effect of fibre in diet on the diseases of western world.

  • S1975E11 Brain Poison

    • May 5, 1975
    • BBC Two

    Horizon presents an investigation into the effects on health of lead in the urban atmosphere.

  • S1975E12 The Bulldog's Last Bark

    • May 12, 1975
    • BBC Two

    This is a Horizon report on the building of the British military deterrent from the first decision to make it in 1941 until the present state of lethargy.

  • S1975E13 Benjamin

    • May 19, 1975
    • BBC Two

    This episode of Horizon follows the progress of Benjamin Pile, born on 22 November, 1974, at Oxford in Britain.

  • S1975E14 The McMaster Experiment

    • June 2, 1975
    • BBC Two

    This report by Horizon covers an experiment at McMaster University Medical School, in Ontario, Canada.

  • S1975E15 The Glazed Outlook

    • June 9, 1975
    • BBC Two

    Horizon investigates the attempts by the University of Newcastle in England to define and create an ideal living and working environment.

  • S1975E16 The Three Chord Trick

    • June 16, 1975
    • BBC Two

    Horizon explores the psychology of music, as it explains why music has such a powerful emotive effect in every society.

  • S1975E17 The Cleanest Place in the World

    • June 23, 1975
    • BBC Two

    This report by Horizon brings you scientists that are using Antarctica as a giant natural lab to study who has polluted Earth most; man or nature.

  • S1975E18 Strange Sleep

    • June 30, 1975
    • BBC Two

    Horizon investigates the discovery of gaseous anaesthetic from 1840 until the early years of 20th century.

  • S1975E19 The Greatest Advance Since the Wheel?

    • July 7, 1975
    • BBC Two

    Horizon reports on the history of superconductivity, from discovery, to the present.

  • S1975E20 How Do You Read?

    • July 14, 1975
    • BBC Two

    In this documentary, Horizon reports on the reading process; how it works for the fluent, and how it should be taught.

  • S1975E21 The Sickly Sea

    • July 21, 1975
    • BBC Two

    This episode of Horizon describes the various aspects of the pollution problem of the Mediterranean Sea.

  • S1975E22 Happy Catastrophe

    • July 28, 1975
    • BBC Two

    In this Horizon episode, Rene Thom's mathematical discovery of the catastrophe theory is investigated.

  • S1975E23 To Die, to Live - The Survivors of Hiroshima

    • August 4, 1975
    • BBC Two

    This documentary by Horizon commemorates the dropping of the A-bomb on Hiroshima, Japan on August 6, 1945, and discusses the feelings and illnesses of survivors of the atomic bomb explosion The film includes interviews with survivors and footage from films made soon after the explosion.

  • S1975E24 Cannabis

    • August 11, 1975
    • BBC Two

    Horizon takes a look at the history of cannabis and the research on the effects of smoking marijuana.

  • S1975E25 Meditation and the Mind

    • August 18, 1975
    • BBC Two

    This is a report by Horizon on Transcendental Meditation, or TM, brought to the West by the Maharishi Mahesh Yogi.

  • S1975E26 The Trobriand Experiment

    • December 29, 1975
    • BBC Two

    This documentary by Horizon is about the Trobriand islanders, whose culture is based on the Kula, a communication system of giving and receiving.

Season 1976

  • S1976E01 The Transplant Experience

    • January 5, 1976
    • BBC Two

    Horizon investigates heart transplant research and techniques perfected and currently used by Dr. Norman Shumway in Britain.

  • S1976E02 Intimate Strangers

    • January 12, 1976
    • BBC Two

    This episode of Horizon is about symbiosis - the close association between two or more species for their mutual benefit.

  • S1976E03 A Fair Share of What Little We Have

    • January 19, 1976
    • BBC Two

    Horizon reports on the country of Tanzania, a country that spends only one dollar per person on health services, and more than half of all children born there die before the age of five.

  • S1976E04 The Incredible Machine

    • January 26, 1976
    • BBC Two

    This episode of Horizon explores what actually happens inside our bodies using new optical techniques.

  • S1976E05 King Coal Revived

    • February 2, 1976
    • BBC Two

    Horizon examines the projected expansion of the coal mining industry.

  • S1976E06 A Question of Trust

    • February 9, 1976
    • BBC Two

    In this episode of Horizon, we look at the need for confidence in the doctor to patient relationship.

  • S1976E07 The Case of the Bermuda Triangle

    • February 16, 1976
    • BBC Two

    Horizon investigates the mysterious Bermuda Triangle.

  • S1976E08 The Lords of the Labyrinth

    • February 23, 1976
    • BBC Two

    Horizon traces back the origins and development of the pre-Incan Chimu civilization of Peru.

  • S1976E09 Inside the Shark

    • March 1, 1976
    • BBC Two

    This documentary by Horizon takes a look at the shark, the supreme predator of the sea.

  • S1976E10 The Chemical Dream

    • March 8, 1976
    • BBC Two

    Horizon reports on enzymes and the way they are being put on work in the industry and medicine fields.

  • S1976E11 The Edelin Affair

    • March 15, 1976
    • BBC Two

    This is a Horizon reconstruction of the trial of Dr. Kenneth Edelin who was arrested after performing an abortion in 1973.

  • S1976E12 The World of Margaret Mead

    • March 22, 1976
    • BBC Two

    This Horizon reports is about Margaret Mead, who at age 74, is one of America's most influential social scientists.

  • S1976E13 The Pathway from Madness

    • March 29, 1976
    • BBC Two

    Horizon investigates the developments in and the treatment of schizophrenia.

  • S1976E14 Geronimo's Children

    • April 5, 1976
    • BBC Two

    This report by Horizon investigates the aggressive and oppressive history of the Mescalero and Chiricuhua Apache Indians of New Mexico in the USA.

  • S1976E15 The Vision of the Blind

    • April 12, 1976
    • BBC Two

    This Horizon documentary investigates the ways that the blind and partially blind are aided.

  • S1976E16 A Lesson for Teachers

    • April 26, 1976
    • BBC Two

    Horizon explores the comparative research study into progressive versus formal primary school teaching in the UK.

  • S1976E17 Why Did Stuart Die?

    • May 3, 1976
    • BBC Two

    This episode of Horizon delves in the research into the causes for, and the methods of eradicating 'cot deaths' in Britain.

  • S1976E18 The Planets

    • May 10, 1976
    • BBC Two

    Horizon outlines the latest discoveries of the formation of the planets by space craft visiting Mars, Venus, Mercury, and Jupiter.

  • S1976E19 The Children of Peru

    • May 17, 1976
    • BBC Two

    Horizon looks at food production in Peru today.

  • S1976E20 Dying

    • May 24, 1976
    • BBC Two

    This is a Horizon documentary on how a widow faces the last day of her husband's life and the story of three other people who know they only have a short time to live.

  • S1976E21 The Great British Drought

    • May 31, 1976
    • BBC Two

    This report by Horizon explores the drought crisis of 1976.

  • S1976E22 A Home Like Ours... A Story of Four Children

    • June 7, 1976
    • BBC Two

    Horizon investigates a local authority residential home in Wandsworth, Britain, for emotionally disturbed children.

  • S1976E23 What's Wrong With the Sun?

    • June 14, 1976
    • BBC Two

    In the episode, Horizon explores the history of man's understanding of the sun's structure and observations in recent years.

  • S1976E24 The Bull's Eye War

    • October 25, 1976
    • BBC Two

    Horizon looks at today's precision guided weapons.

  • S1976E25 The Hot-Blooded Dinosaurs

    • November 1, 1976
    • BBC Two

    Horizon makes an investigation into claims by a group of scientists who theorize that dinosaurs were not actaully cold-blooded reptiles, but hot-blooded, like mammals.

  • S1976E26 Billion Dollar Bubble

    • November 8, 1976
    • BBC Two

    This is an investigative report by Horizon that shows how the Equity Funding Corp. of America produced two billion dollars worth of phoney insurance.

  • S1976E27 The Selfish Gene

    • November 15, 1976
    • BBC Two

    This Horizon documentary explores animal behavior. Animals do not act for the good of their own species, rather for the preservation of their own genes.

  • S1976E28 A Child of Our Own

    • November 22, 1976
    • BBC Two

    This episode of Horizon is about infertility and the state of British scientific research in this area.

  • S1976E29 Secrets of a Coral Island

    • November 29, 1976
    • BBC Two

    Horizon reports on Pacific Ocean fishermen who are famous for their extraordinary fishing skills. They catch fish with a kite and a tassel of spiders webs.

  • S1976E30 The Long Valley

    • December 6, 1976
    • BBC Two

    This is a Horizon documentary about six people who have each lost someone very close, as they describe their progress through grief.

  • S1976E31 Half-Way to 1984

    • December 13, 1976
    • BBC Two

    Horizon looks at new developments in computer technology that have made mass surveillance possible, and also its political misuse.

  • S1976E32 The Mystery of King Arthur and His Round Table

    • December 20, 1976
    • BBC Two

    This Horizon episode is about the actual King Arthur's Round Table, which hangs in the Hall of Winchester Castle, Hants, Britain.

Season 1977

  • S1977E01 A Smile for a Crocodile

    • January 7, 1977
    • BBC Two

    Horizon documents the life of crocodiles and alligators, and their breeding and exploitation.

  • S1977E02 The Pill for the People

    • January 14, 1977
    • BBC Two

    Horizon traces the history of the oral contraceptive pill through the last 60 years as told by its pioneers.

  • S1977E03 The Ape That Stood Up

    • January 21, 1977
    • BBC Two

    Horizon looks at how recent excavations in Africa have changed the accepted ideas of man's origins and age.

  • S1977E04 The Human Animal

    • February 4, 1977
    • BBC Two

    Horizon investigates Sociobiology, which is a study of human social behaviour based on zoological research into animal behaviour.

  • S1977E05 The Guinea Pig and the Law

    • February 18, 1977
    • BBC Two

    In this episode, Horizon explores how animal experiments are carried out in Britain.

  • S1977E06 Hunters of the Seal

    • February 25, 1977
    • BBC Two

    Horizon presents a story that depicts an astonishingly harsh way of life of the Netsilik Eskimos whose whole life is based on seal hunting.

  • S1977E07 The Red Planet

    • March 4, 1977
    • BBC Two

    This story by Horizon traces the efforts of astronomers and scientists through history to prove the existence of life on Mars.

  • S1977E08 One of Nature's Hotels

    • March 11, 1977
    • BBC Two

    Horizon looks at an ecological study of the Ythan estuary in Scotland.

  • S1977E09 Dawn of the Solar Age

    • March 18, 1977
    • BBC Two

    In this episode, Horizon investigates research into solar energy in the USA, Japan, and the UK.

  • S1977E10 Genetic Roulette

    • April 1, 1977
    • BBC Two

    Horizon explores the debate on human genetic engineering.

  • S1977E11 The Amazing Doctor Newton

    • July 15, 1977
    • BBC Two

    BBC television documentary which explores, using live-action dramatisation, the life's work of Sir Isaac Newton, emphasising his sources of inspiration.

  • S1977E12 The Trouble with Medicine

    • July 22, 1977
    • BBC Two

    In this episode, Horizon looks at how, despite the high costs of the National Health System of Britain, more money doesn't mean better health.

  • S1977E13 Silent Speech

    • July 29, 1977
    • BBC Two

    This Horizon report is about Prof. Hubert Montagner and his study of non-verbal communication in young children, along with his findings.

  • S1977E14 The Green Machine

    • August 5, 1977
    • BBC Two

    Horizon makes an investigation into plant biology.

  • S1977E15 Horizon 2002

    • August 26, 1977
    • BBC Two

    Horizon theorizes how life could be in 2002, using extracts from previous Horizon episodes.

  • S1977E16 The River That Came Clean

    • September 2, 1977
    • BBC Two

    This is a report by Horizon on the successful clean-up of the River Thames in Britain.

  • S1977E17 Blueprints in the Bloodstream

    • September 9, 1977
    • BBC Two

    This Horizon episode reports on research by scientists into identifying a system of markers, such as tissue types on blood cells, which indicate the human being's vulnerability to a whole range of diseases like multiple sclerosis and diabetes, and the possibilities this presents for preventive medicine.

  • S1977E18 40 Years of Murder

    • September 16, 1977
    • BBC Two

    Horizon presents a profile on one of the UK's leading pathologists, Keith Simpson.

  • S1977E19 Darwin's Dream

    • September 23, 1977
    • BBC Two

    Horizon takes a look at the progress of Charles Darwin's theory of evolution.

  • S1977E20 The Cry for Help

    • September 30, 1977
    • BBC Two

    This Horizon episode examines the growing British problem of attempted suicide by an overdose of drugs.

  • S1977E21 The Sunspot Mystery

    • October 7, 1977
    • BBC Two

    Horizon presents evidence that links the drought cycle with the number of magnetically-hyperactive sunspots.

  • S1977E22 The Rhine's Revenge

    • October 21, 1977
    • BBC Two

    Horizon presents the story of how the river Rhine has defended itself against progress.

  • SPECIAL 0x1 The Case of the Ancient Astronauts

    • November 25, 1977
    • BBC Two

    In this special episode, Horizon reports on Erich von Däniken and his theories about astronauts visiting Earth long ago.

  • S1977E23 Icarus' Children

    • December 2, 1977
    • BBC Two

    Horizon presents a report on the prize offered to the first person who could fly a prescribed figure of eight course.

  • S1977E24 The Healing Nightmare

    • December 9, 1977
    • BBC Two

    This episode of Horizon is a dramatized reconstruction of breakdown of Carl Gustav Jung on the road to insanity.

  • S1977E25 The Great Wine Revolution

    • December 23, 1977
    • BBC Two

    Horizon explores a new science-based revolution in the production of wine.

Season 1978

  • S1978E01 Living Machines

    • January 6, 1978
    • BBC Two

    Horizon investigates how biologists and engineers are pooling their ideas to understand how nature's machines work.

  • S1978E02 A Land for All Reasons

    • January 20, 1978
    • BBC Two

    In this episode, Horizon examines the need for an objective approach to land management in Britain.

  • S1978E03 I Don't Want to Be a Burden

    • January 27, 1978
    • BBC Two

    Horizon explores community and residential services available to the elderly in South Hampton, England.

  • S1978E04 Zero G

    • February 3, 1978
    • BBC Two

    Horizon presents a report on zero gravity and the effects of weightlessness in spacecraft on humans.

  • S1978E05 The Message In The Rocks

    • February 17, 1978
    • BBC Two

    Develops the theory that four and a half thousand million years ago the earth was formed thanks to the explosion of a huge star which provided the rocks, the minerals and the radioactivity from which life developed. These theories are based partly on analysis of a meteorite which dropped near a village in Mexico at the beginning of the seventies.

  • S1978E06 The Eddystone Lights

    • February 24, 1978
    • BBC Two

    Horizon reports on last three attempts to build a lighthouse on the Eddystone Rocks, near Plymouth.

  • S1978E07 Light of the 21st Century

    • March 10, 1978
    • BBC Two

    Horizon presents a documentary on the development of the Light Amplification by Stimulated Emission of Radiation device, or more commonly know as the Laser.

  • S1978E08 The New Breadline

    • March 24, 1978
    • BBC Two

    Horizon investigates the reasons for poverty in Britain today, now with seven million on at the poverty line.

  • S1978E09 Now the Chips Are Down

    • March 31, 1978
    • BBC Two

    About the applications and implications for the future, particularly the effects on the labour market, of microprocessors.

  • S1978E10 Explosions in the Mind

    • July 14, 1978
    • BBC Two

    In this episode, Horizon explores the after effects of a stroke when there is a sudden stoppage of blood to the human brain.

  • S1978E11 One Small Step

    • July 21, 1978
    • BBC Two

    Horizon investigates the race to the moon between the USA and Russia and questions the motives behind the space race.

  • S1978E12 The Tsetse Trap

    • July 28, 1978
    • BBC Two

    This episode of Horizon is about the tsetse fly which rules most of Africa and why much of the fertile land can't in Africa can't be used because of the dangerous insect.

  • S1978E13 A Whisper From Space

    • August 4, 1978
    • BBC Two

    Horizon explores the history of evidence used to support the Big Bang Theory of the creation of the universe.

  • S1978E14 Prisoners of Hope

    • August 11, 1978
    • BBC Two

    In this episode, Horizon explains some of the research in multiple sclerosis and how the lives of MS sufferers are affected.

  • S1978E15 On a Different Track

    • August 18, 1978
    • BBC Two

    Horizon presents a brief history of the French railways and the policy behind their future direction.

  • S1978E16 Careering into Science

    • August 25, 1978
    • BBC Two

    This documentary by Horizon is about six school children taking 'O' levels exams and inter science in Britain.

  • S1978E17 Cashing in on the Ocean

    • September 1, 1978
    • BBC Two

    Horizon looks at the implications of exploiting Manganese nodules which are scattered over the seabed.

  • S1978E18 Bags of Life

    • September 8, 1978
    • BBC Two

    Horizon investigates the composition and structure of the membrane that surround individual cells.

  • S1978E19 Innocent Slaughter

    • September 15, 1978
    • BBC Two

    In this documentary, Horizon examines all sides of the Canadian Harpseal hunt issue and asks if it is really necessary.

  • S1978E20 The Beersheva Experiment

    • November 3, 1978
    • BBC Two

    Horizon explores an experimental medical school in Israel where students are trained primarily to care for people.

  • S1978E21 Divers Do It Deeper

    • November 10, 1978
    • BBC Two

    Horizon explores the years of research that have enabled divers to go to greater and greater ocean depth.

  • S1978E22 The Big Sleep

    • November 17, 1978
    • BBC Two

    In this story, Horizon takes a look at the world's leading hibernation research projects.

  • S1978E23 The Vital Spark

    • November 24, 1978
    • BBC Two

    In this episode, Horizon examines the current developments in electrotherapy.

  • S1978E24 The Red Deer of Rhum

    • December 29, 1978
    • BBC Two

    Horizon takes a look at the changing behaviour of individual animals in a herd of red deer on the Isle of Rhum.

Season 1979

  • S1979E01 The Forever Fuel

    • February 26, 1979
    • BBC Two

    Horizon presents an investigation into the potential and problems of using hydrogen as an alternative to existing fuels.

  • S1979E02 In Search of Pegasus

    • March 5, 1979
    • BBC Two

    In this program, Horizon looks at the effort and money spent on the horse to produce the perfect specimen.

  • S1979E03 The Keys of Paradise

    • March 12, 1979
    • BBC Two

    Horizon follows the discovery of a chemical in the brain which has morphine-like properties.

  • S1979E04 Sweet Solutions

    • March 19, 1979
    • BBC Two

    Horizon presents the history and research into the uses of sugar.

  • S1979E05 Bronze Age Blast-Off

    • March 26, 1979
    • BBC Two

    In this documentary by Horizon, you are shown a revolution in archaeological dating has shown that metal technology was invented in Europe.

  • S1979E06 The Real Bionic Man

    • April 2, 1979
    • BBC Two

    Horizon explores the current state of research into the development of artificial replacements for various parts of the body.

  • S1979E07 A Mediterranean Prospect

    • April 9, 1979
    • BBC Two

    Horizon reports about the attempts to bring about cooperation between the Mediterranean countries to combat pollution of their seas.

  • S1979E08 Elements of Risk

    • April 23, 1979
    • BBC Two

    In this episode, Horizon looks at Britain's methods and plans for nuclear waste management and disposal of the fuel elements.

  • S1979E09 Mr. Ludwig's Tropical Dreamland

    • April 30, 1979
    • BBC Two

    Horizon presents a documentary that shows how part of the Amazon river area around the Rio Jari was developed with rice and forestry.

  • S1979E10 Where Nothing Happens Twice

    • May 7, 1979
    • BBC Two

    This is a Horizon documentary about Liam Hudson, noted psychologist at Brunel University as he challenges modern psychologists.

  • S1979E11 Journey Through the Human Body

    • May 14, 1979
    • BBC Two

    Horizon examines the work of Dr. Lennart Nilsson who has filmed the complete arterial system of the human body.

  • S1979E12 The Fight to Be Male

    • May 21, 1979
    • BBC Two

    This episode of Horizon looks at the recent scientific research into how humans become male or female.

  • S1979E13 The Robots Are Coming

    • May 28, 1979
    • BBC Two

    This Horizon documentary is about the increasing use of robots in industry, and the robot's abilities and weaknesses.

  • S1979E14 Mexican Oil Dance

    • September 24, 1979
    • BBC Two

    Horizon explores the effect of the Mexican oil boom on the country itself and world energy situation.

  • S1979E15 Tracks on the Oregon Trail

    • October 1, 1979
    • BBC Two

    Horizon investigates the environmental protection program going on in the state of Oregon in the USA. Oregon is the first state to clean up it's environment.

  • S1979E16 The Race to Reshape Cars

    • October 8, 1979
    • BBC Two

    In this episode, Horizon reports on the need to consider more aerodynamic designs for cars to improve fuel economy.

  • S1979E17 Dragnet for Diabetes

    • October 15, 1979
    • BBC Two

    Horizon presents a report on the research into diabetes to determine its causes, controlling measures, and the prevention of complications.

  • S1979E18 The Lost Waters of the Nile

    • October 22, 1979
    • BBC Two

    Horizon takes a trip down the Jonglei Canal which is under construction in Sudan and reports on the changes the new canal will bring to the country, and the rest of the world.

  • S1979E19 Survival of the Fastest

    • October 29, 1979
    • BBC Two

    This Horizon documentary describes the complete history and design of motorcycles which have significantly evolved over the past 80 years.

  • S1979E20 A Touch of Sensitivity

    • November 5, 1979
    • BBC Two

    This report by Horizon is about current research into the physical and psychological effects of touch, and the effects of touch deprivation.

  • S1979E21 A Treasury of Trees

    • November 12, 1979
    • BBC Two

    Horizon investigates how the British landscape is changing its appearance with native trees being replaced by imported species.

  • S1979E22 Darkness Visible

    • November 19, 1979
    • BBC Two

    Horizon examines the development of the relatively new science of x-ray astronomy.

  • S1979E23 Uranium Goes Critical

    • December 3, 1979
    • BBC Two

    This Horizon episode is all about Uranium; its history, the use of uranium for nuclear energy, the dangers of uranium, and the scarcity of the mineral.

  • S1979E24 The Fat in the Fire

    • December 10, 1979
    • BBC Two

    Horizon explores current research into the causes and cure for obesity.

  • S1979E25 Decade

    • December 17, 1979
    • BBC Two

    In this episode by Horizon, G. R. Taylor presents his personal view of science based on previous Horizon episode clips from the 1970's.

Season 1980

  • S1980E01 The Ghost Of The Amoco Cadiz

    • January 14, 1980
    • BBC Two

    Documentary examination of the causes and conditions of the sinking of the Amoco Cadiz oil-tanker, in 1978.

  • S1980E02 You Are Old, Father William

    • January 21, 1980
    • BBC Two

    Documentary examination on the process of ageing and some things that can be done about the problems of senility in old people.

  • SPECIAL 0x2 The Mind's Eye

    • January 28, 1980
    • BBC Two

    This special episode of Horizon shows the latest advances in research into how the visual eyesight system of humans and animals work.

  • S1980E03 Cleared For Takeoff

    • February 4, 1980
    • BBC Two

    Documentary which looks at the danger points in flying an airliner on a routine flight from Gatwick to Los Angeles. Danger points are identified and we see research into airtraffic control, aircraft design, the role of the stewardess, avoiding mid-air collisions, electronic flight desks, whirlwind vortices and a new fuel additive that may virtually eliminate the instant conflagrations.

  • S1980E04 A Sporting Chance

    • February 11, 1980
    • BBC Two

    Documentary on the ways in which athletes from different countries prepare for the Olympic Games and the artificial methods of improving performance, drugs and physiological methods

  • S1980E05 Cancer Detectives of Lin Xian

    • February 18, 1980
    • BBC Two

    Documentary film on cancer research in the remote Chinese valley of Lin Xian where the population suffers more than 100 times the incidence of oesophagal cancer than normal.

  • S1980E06 The Big If...

    • February 25, 1980
    • BBC Two

    About Interferon, a drug made from human blood cells, thought to be capable of controlling viruses and cancer

  • S1980E07 Cash From Trash

    • March 3, 1980
    • BBC Two

    Explores the potential in recycling rubbish in terms of energy and other resources

  • S1980E08 Encounter With Jupiter

    • March 10, 1980
    • BBC Two

    Documentary on the space voyages of Nasa robot space craft Voyager 1 & 2 and their photographic records of the planet Jupiter.

  • S1980E09 Portrait of a Poison

    • March 17, 1980
    • BBC Two

    Documentary report on the mounting evidence of the horrifying effects of the use of dioxin as a defoliant in Vietnam and as a herbicide in domestic use on both humans and all other living beings.

  • S1980E10 Magnet Earth

    • March 24, 1980
    • BBC Two

    Looks at what is known about the earth's magnetic field, how it affects the world's organisms and in particular at recent research in this field.

  • S1980E11 Goodbye Gutenberg

    • September 1, 1980
    • BBC Two

    Documentary on the "information revolution" the advances made in the methods of electronic storage and display of information, and the effects of these advances on democracy, language, national boundaries, bureaucracy and privacy.

  • S1980E12 Invasion of the Virions

    • September 8, 1980
    • BBC Two

    Investigates various virus infections ranging from smallpox and rabies down to influenza and the common cold. The way they function and the reasons the body builds up resistance to some and not to others.

  • S1980E13 Beyond the Milky Way

    • September 15, 1980
    • BBC Two

    Astronomers are seen at work in the UK, Arizona, Hawaii, New Mexico and Australia, describing their discoveries about the galaxies beyond the Milky Way.

  • S1980E14 Little Boxes

    • September 22, 1980
    • BBC Two

    Documentary about industrial design and the effect it has on the look of everyday life. Dieter Rams, Tom Woolfe, Etore Sottsass and Raymond Loewy are among the designers talking about their work .

  • S1980E15 The Other Kenya

    • September 29, 1980
    • BBC Two

    Looks at the contrasts in Kenya between the tourist image and the hardship caused by development. In particular, considers the lives of three family groups native to the country and the poverty they are forced to live in by the Kenyan economy geared to the West.

  • S1980E16 Moving Still

    • October 6, 1980
    • BBC Two

    The new perspectives which can be gained on the natural world through time-lapse and high-speed photography. Includes footage of droplets of water merging in mid-air, a bullet spiralling up its barrel toward you, a wet dog shaking its fur, flowers bursting open, starfish scurrying on the sea floor, and spark plugs spreading their fire.

  • S1980E17 The Way Out

    • October 13, 1980
    • BBC Two

    Documentary about London Transport and the decline in its services over the year s. It receives less subsidy than an comparable transport system in the world, but would more GLC aid improve the service?

  • S1980E18 The Dead Sea Lives

    • October 20, 1980
    • BBC Two

    Explains, within a historical context, how Israel and Jordan are trying to make use of the Dead Sea. Its mineral-rich waters are being harnessed by scientists and engineers to produce such diverse products as protein, potash and cheap energy .

  • S1980E19 Once In a Million Years

    • October 27, 1980
    • BBC Two

    Documentary on nuclear energy and the efforts of scientists to contain and control the high risk factors involved with plutonium and uranium.

  • S1980E20 Smoker's Luck

    • November 3, 1980
    • BBC Two

    Documentary about smoking and about the secondary effects of it. Britain leads the world in smoking deaths at 200 per day. The film looks at prognosis of deat h and at the chances of those who give up smoking of dying of the effects.

  • S1980E21 Behind the Horoscope

    • November 10, 1980
    • BBC Two

    Documentary looking at the scientific facts about the growing cult of Astrology. In this report, Horizon looks at the way astrology has evolved and examines statistical evidence to evaluate its credibility.

  • S1980E22 The Mondragon Experiment

    • November 17, 1980
    • BBC Two

    Documentary on the twenty-five year old experimental industrial set-up in the Spanish city of Mondragon where most of the factories and laboratories are co-operativetively owned and run by a workers committee.

  • S1980E23 The Spike

    • November 24, 1980
    • BBC Two

    Documentary about epilepsy, showing epileptic fits as they occur and explaining what the onlooker should and should not do. Sufferers describe their experiences of the disease and consultant neurologist and psychiatrist, Dr. Peter Fenwick, offers a scientific interpretation.

  • S1980E24 The Slatemakers

    • December 1, 1980
    • BBC Two

    Documentary on the slatemaking industry of North Wales, now a dying craft, and the people involved with it.

  • S1980E25 Anatomy of a Volcano

    • December 15, 1980
    • BBC Two

    Chronicles the efforts of geologists throughout the summer of 1980 to study the recently erupted volcano Mt. Saint Helens in Washington State, USA.

Season 1981

  • S1981E01 Spend and Prosper

    • January 5, 1981
    • BBC Two

    Horizon presents a portrait of the renowned economist John Maynard Keynes, Cambridge Don, and Bloomsbury intellectual.

  • S1981E02 A Whole New Medicine

    • January 12, 1981
    • BBC Two

    This episode of Horizon is about holistic medicine, health for the whole person, which uses unorthodox therapies.

  • S1981E03 The Qualyub Project

    • January 19, 1981
    • BBC Two

    Horizon explores the research of Egyptian doctors in trying to control bilharzia, a disease caused by parasitic worms.

  • S1981E04 No-One Will Take Me Seriously

    • January 26, 1981
    • BBC Two

    Horizon investigates the reports about a number of scientists who do not conform to contemporary scientific theories.

  • S1981E05 Living With Dying

    • February 2, 1981
    • BBC Two

    Horizon investigates the care given to the terminally ill by hospices.

  • S1981E06 A is for Atom, B is for Bomb

    • February 9, 1981
    • BBC Two

    In this episode, Horizon presents a portrait of Dr. Edward Teller, whose opinions about nuclear war are highly controversial.

  • S1981E07 Who Will Deliver Your Baby?

    • February 16, 1981
    • BBC Two

    Horizon reports on the changing role of the community midwife in Britain as more births take place in hospital.

  • S1981E08 West of Bangalore

    • March 2, 1981
    • BBC Two

    A group of scientists are trying to solve public utility problems in Mysore, India.

  • S1981E09 Gentlemen, Lift Your Skirts

    • March 9, 1981
    • BBC Two

    Horizon examines the design of Formula One racing cars with a particular reference to the aerodynamic 'skirt'.

  • S1981E10 Hello Universe!

    • March 16, 1981
    • BBC Two

    Horizon explores probabilities of whether we have any intelligent neighbors in space.

  • S1981E11 Voices From Silent Hands

    • March 23, 1981
    • BBC Two

    Horizon presents a documentary on deaf children and their struggle to learn the sign language.

  • S1981E12 Did Darwin Get It Wrong?

    • March 30, 1981
    • BBC Two

    In this episode, Horizon explores the new evolutionary theory that there are sudden, vs. gradual, evolutionary changes from one species to another.

  • S1981E13 East of Bombay

    • April 6, 1981
    • BBC Two

    This show is a Horizon documentary about the training by two doctors from India, Rajnikant and Mabelle Arole, who are trying to combat the curable diseases. These diseases are common killers in Indian communities. Also, a report on Salubai, one of these native health workers and her work at Kamkhed in Western India.

  • S1981E14 Resolution on Saturn - The Rings

    • April 11, 1981
    • BBC Two

    Horizon presents a two part documentary on NASA's unmanned Voyager 1 spacecraft and the data it has sent back from the planets Jupiter and Saturn.

  • S1981E15 Resolution on Saturn - The Moons

    • April 13, 1981
    • BBC Two

    Horizon presents the second episode of a two part documentary on NASA's unmanned Voyager 1 spacecraft and the data it has sent back from the planets Jupiter and Saturn.

  • S1981E16 Heads I Win, Tails You Lose

    • September 28, 1981
    • BBC Two

    In this documentary on nuclear energy, Horizon looks at three experts with regard to the prospect of a nuclear power station sited for construction near where they live.

  • S1981E17 The Hunt for the Legion Killer

    • October 5, 1981
    • BBC Two

    Horizon investigates Legionnaires disease and the research being carried out in the USA to try find a cause and cure.

  • S1981E18 Breaking in Children

    • October 12, 1981
    • BBC Two

    In this story, Horizon follows the efforts of two mothers who attempt gain control over their very disobedient children.

  • S1981E19 The Grid

    • October 19, 1981
    • BBC Two

    Horizon presents a followup episode of Gentlemen, Lift Up Your Skirts, covering the Formula One racing season while investigating the way the William's racing team fought the fierce competition of the French and Italian racings teams by finding ways around new rulings to make their cars first on the grid.

  • S1981E20 Butterflies or Barley?

    • October 26, 1981
    • BBC Two

    Horizon reports on the conflict between the farmers and the conservationists over the English countryside.

  • S1981E21 Science for the People

    • November 2, 1981
    • BBC Two

    Horizon presents a two part documentary looking at the science and technology inside the Soviet Union. In this episode, we look at why the Russians might need to import a chemical processing plant from the UK and computers from the USA when they have a quarter of the world's scientists and still give science and research the highest priority.

  • S1981E22 The Race to Ruin

    • November 9, 1981
    • BBC Two

    This is the second part of the Horizon documentary on the Soviet Union. In this report, we examine the basis for the space arms race between USA and USSR. Are the US efforts for the extensive space defense system to match the Russians based on a misconception of the USSR war effort from space?

  • S1981E23 Death of the Dinosaurs

    • November 16, 1981
    • BBC Two

    Horizon investigates theories about the mystery of why the dinosaurs disappeared 65 million years ago.

  • S1981E24 The Pleasure Of Finding Things Out

    • November 23, 1981
    • BBC Two

    Richard Feymann was one of the most brilliant theoretical physicists and original thinkers or the 20th century. He rebuilt the theory of quantum electrodynamics, and it was for this work that he won the Nobel Prize in 1965. In this documentary he talks about his motivations to be a scientist and a teacher of science.

  • S1981E25 The Cornucopia

    • November 30, 1981
    • BBC Two

    Horizon explores the Common Agricultural Policy of the EEC that produces mountains of food. We look at the position which many European farmers occupy in western European economies which leads to the creation of overproduction of agricultural products. Do they need to reform the policy?

  • S1981E26 The Race Against Time

    • December 7, 1981
    • BBC Two

    Horizon reports on the efforts of the British Advanced Passenger Train (APT) engineering team trying to prepare the new APT for its first run.

  • S1981E27 Painting by Numbers

    • December 21, 1981
    • BBC Two

    Horizon presents a documentary on the advances of computer graphics and its multiple uses in simulating reality in industry and science. It looks at the manipulation of 3-D images to paint, animate, design, and test scientific hypothesis.

Season 1982

  • S1982E01 The Secret of the Snake

    • January 11, 1982
    • BBC Two

    Profile of the snake, which presents a close-up look at how it kills and digests it's prey. Also shows how snake venom could be used in the treatment of many human ailments.

  • S1982E02 Finding A Voice

    • January 18, 1982
    • BBC Two

    An examination of computer-based communication aids for the severely speech impaired. Follows the trip to America of Dick Boydell, a cerebral palsy sufferer without the power of speech. At the Artificial Language Research Laboratory in Michigan, he tries out some of the machines developed the re to help him find his own voice.

  • S1982E03 The Sea Beyond the Dunes

    • January 25, 1982
    • BBC Two

    Documentary which looks at the wildlife of Pleasant Bay in New England marshland s of the Eastern USA, and their habitat.

  • S1982E04 Whatever Happened to the Energy Crisis?

    • February 1, 1982
    • BBC Two

    Horizon explores what might happen when fossil fuel sources are depleted.

  • S1982E05 Notes of a Biology Watcher

    • February 8, 1982
    • BBC Two

    Horizon documents how every one of us is owned and operated by other individuals; by hordes of hidden organisms.

  • S1982E06 The Cline Affair

    • February 15, 1982
    • BBC Two

    Documentary on the first recorded instance of genetic engineering being carried out on a human, when in 1980, Dr. Martin Cline from Los Angeles operated on a 21 year old Israeli girl in Jerusalem to renew her defective blood system by implanting human genes. The programme examines the difficult ethical and moral questions surrounding the field of genetic manipulation and looks at the future of gene therapy.

  • S1982E07 The Million Murdering Death

    • February 22, 1982
    • BBC Two

    Documentary which looks at the way in which disease in the world fights back against modern scientific methods of controlling it, looking at the example of the eradication of Malaria from Sri Lanka, and recent measures to eradicate it again

  • S1982E08 Shots in the Dark

    • March 1, 1982
    • BBC Two

    An examination of the use of Depo-Provera in the Third World. The contraceptive is injected and prevents pregnancy for three months, but it is banned in the U.S. because of the risk of cancer. Looks at its use in Thailand.

  • S1982E09 The Victims

    • March 8, 1982
    • BBC Two

    Documentary which looks at the psychological effects of kidnapping and imprisonment on the victims,based on the psychological characteristics shown by former concentration camp victims 30 years after the end of their ordeal.

  • S1982E10 The Future - Made in Japan?

    • March 15, 1982
    • BBC Two

    Examines the prospects for Japanese economic supremacy in the 1990s and asks whether Japan will be able to compete in the development of new technologies or whether it will continue to look to the West for technological innovation. Also considers whether the Japanese education system stifles creativity.

  • S1982E11 The Private Face of Medicine

    • March 22, 1982
    • BBC Two

    Documentary which looks at the boom in private medicine in GB and at the effects of this on the National Health Service in the country.

  • S1982E12 The Fatal Bargain

    • April 5, 1982
    • BBC Two

    Documentary which looks at the outbreak of a new disease in Spain in 1981 which has affected 17,000 people, killing 300, and the confusion which remains as to its causes. Although adulterated olive oil sold by unscrupulous businessmen is thought to be partly to blame, no-one seems sure to what extent.

  • S1982E13 The Miracle of Life

    • October 11, 1982
    • BBC Two

    Documentary which shows the human reproductive cycle from conception to birth, through the use of microscopic cameras within the human body.

  • S1982E14 The Case of the UFOs

    • October 18, 1982
    • BBC Two

    Documentary which looks at the phenomenon of the Unidentified Flying Object and the possible explanations behind their sighting and observation by mankind.

  • S1982E15 A Killing Rain

    • October 25, 1982
    • BBC Two

    Documentary about acid rain. The effects of various forms of pollution caused by processes of everyday life, including the contamination of rain by the burning of coal and oil. Written by Jeremy Taylor.

  • S1982E16 Intimate Relations

    • November 1, 1982
    • BBC Two

    A look at current research into the causes and effects of divorce in the Western world.

  • S1982E17 The Scientist and the Baby

    • November 8, 1982
    • BBC Two

    Documentary which looks at the great advances in the performance of ante-natal operations on the human foetus and the implications of these technical facilities for patient and health services and allocation of resources to this sort of medicine.

  • S1982E18 Brave New Babies?

    • November 15, 1982
    • BBC Two

    Oxford moral philosopher Jonathan Glover introduces some of the new developments in genetic engineering, looks at the future possibilities of human genetic engineering and outlines the ethical questions raised by these new techniques.

  • S1982E19 The Professor of Surgery

    • November 29, 1982
    • BBC Two

    An informal portrait of Prof. Ian McColl at work in Guy's Hospital, London, and in Kent. He discusses what makes a good surgeon; how he teaches his students to talk to their future patients; and how much a patient should be told about what is going to happen in the operating theatre.

  • S1982E20 The Chopper

    • December 6, 1982
    • BBC Two

    Traces the evolution of the helicopter, using rare archive footage of early pioneering flights. Also examines the latest research within the industry, and, with the aid of graphics, produces a glimpse of the helicopter of the future

  • S1982E21 The State of the Planet

    • December 13, 1982
    • BBC Two

    Documentary on the discussions at the second UN Environment Conference,in London in 1982,illustrating the points made in the debates on the possible future of the planet.

  • S1982E22 The Mysterious Mr. Tesla

    • December 20, 1982
    • BBC Two

    Documentary about the little known Yugoslav-American scientist Nikola Tesla, whose experiments with electricity and wireless foreshadowed the discoveries of Edison and Marconi. Some of his most spectacular experiments are recreated by the programme's presenter Robert Syme.

  • SPECIAL 0x3 25 Years in Space

    • December 25, 1982

    This Horizon special episode recalls the highlights of the past 25 years of the space age.

Season 1983

  • S1983E01 Sizewell Under Pressure

    • January 10, 1983
    • BBC Two

    Horizon investigates if Britain should build a United States designed nuclear power station that uses a pressurized water reactor at its core.

  • S1983E02 The Tropical Time Machine

    • January 17, 1983
    • BBC Two

    Horizon presents a report by Dr. Alison Jolly who discusses the country of Madagascar, just off of the west coast of Africa. Madagascar's ecology and conservation programs are in conflict with most third world economies.

  • S1983E03 The Geneva Event

    • January 24, 1983
    • BBC Two

    Horizon brings you a report about the discovery of two new, and unimaginably short-lived, subatomic particles called "W" and "Z".

  • S1983E04 How Much Can You Drink?

    • February 7, 1983
    • BBC Two

    Horizon examines some of the effects that moderate amounts of alcohol can have on the body.

  • S1983E05 Talking Turtle

    • February 14, 1983
    • BBC Two

    In the Horizon documentary, we look new ways of using computers in classroom and to what effect computers in our schools will have in future.

  • S1983E06 What Little Girls are Made of

    • February 21, 1983
    • BBC Two

    Horizon investigates the way girls and boys were taught science and related subjects at schools.

  • S1983E07 British Science - On the Wrong Track?

    • February 28, 1983
    • BBC Two

    Horizon reports on the state of scientific research in Britain and the past blunders of the National Research Development Council.

  • S1983E08 The Great Plains Massacre

    • March 7, 1983
    • BBC Two

    In this Horizon documentary, we look back at the event surrounding the near extermination of the North American bison (buffalo) in the 1880's.

  • S1983E09 Hard Rock

    • March 14, 1983
    • BBC Two

    The Horizon episode is about the Carsington Aqueduct Scheme in Derbyshire, England, and the massive excavation problems encountered during construction.

  • S1983E10 Better Mind the Computer

    • March 21, 1983
    • BBC Two

    Horizon presents a look at the current research into artificial computer intelligence.

  • S1983E11 Madness on Trial

    • April 11, 1983
    • BBC Two

    Horizon looks at the mental problem of schizophrenia and how madness is medically diagnosed.

  • S1983E12 Sixty Minutes to Meltdown

    • April 18, 1983
    • BBC Two

    In this episode, Horizon investigates the nuclear accident which took place in the United States at the Three Mile Island nuclear power plant during March 1979.

  • S1983E13 Killer in the Village

    • April 25, 1983
    • BBC Two

    In this report, Horizon looks at the spread of the AIDS virus in the United States and their search for the cause and cure of the deadly disease.

  • S1983E14 The Case of ESP

    • September 26, 1983
    • BBC Two

    n this documentary, Horizon investigates the power of the mind for psychic phenomena; telepathy, clairvoyance, precognition, and psychokinesis.

  • S1983E15 The Artificial Heart

    • October 3, 1983
    • BBC Two

    Horizon investigates the current research into development and use of an artificial heart.

  • S1983E16 Dr. Priestley and the Breath of Life

    • October 10, 1983
    • BBC Two

    This report by Horizon examines the experiments of Joseph Priestly on blood and oxygen in photosynthesis.

  • S1983E17 Professor Hawking's Universe

    • October 17, 1983
    • BBC Two

    This episode of Horizon features Prof. Stephen Hawking and how he copes with his severe disability, his scientific career, and his relationship with his students.

  • S1983E18 The Cruel Choice

    • October 24, 1983
    • BBC Two

    This documentary focuses on animal experiments and the suffering they cause. The video debates their accuracy, whether they are necessary and examines alternative research methods.

  • S1983E19 A Child's Guide To Languages

    • October 31, 1983
    • BBC Two

    Looks at different ways of teaching a foreign language and contrasts them with the way babies and young children pick up their native language, without formal teaching.

  • S1983E20 China's Child

    • November 7, 1983
    • BBC Two

    Horizon examines how the government of China presents the "one child per family" population policy to the people.

  • S1983E21 The Earthquake Connection

    • November 14, 1983
    • BBC Two

    Horizon investigates today's research into earthquakes and the usefulness of the findings.

  • S1983E22 Prisoner or Patient?

    • November 28, 1983
    • BBC Two

    Horizon presents this documentary on how Britain deals with its mentally ill criminal offenders.

  • S1983E23 Cancer - The Pattern in the Genes

    • December 5, 1983
    • BBC Two

    In this report, Horizon outlines the latest research into cancer with specific reference to oncogenes.

  • S1983E24 The Academy

    • December 12, 1983
    • BBC Two

    Horizon follows group of men and women going through basic training in Federal Bureau of Investigation (FBI) methods at the Academy in the United States.

Season 1984

  • S1984E01 The Intelligence Man

    • January 9, 1984
    • BBC Two

  • S1984E02 Microworld!

    • January 16, 1984
    • BBC Two

    Horizon looks at the research advances in physics and technology of microelectronics.

  • S1984E03 A New Green Revolution?

    • January 23, 1984
    • BBC Two

    This episode of Horizon looks at the role of scientists in agriculture throughout the Third World countries.

  • S1984E04 Spies in the Wires

    • January 30, 1984
    • BBC Two

    Horizon examines the various ways of committing computer fraud and at the efforts to prevent it and preserve our privacy.

  • S1984E05 Valley of the Inca

    • February 13, 1984
    • BBC Two

    In this documentary, Horizon examines the work at an archaeological project in the Cusichaca Valley, Peru.

  • S1984E06 Conquest of the Parasites

    • February 27, 1984
    • BBC Two

    Horizon presents this report on parasites, their life styles, and the diseases they cause in Third World countries.

  • S1984E07 Reflections on a River

    • March 5, 1984
    • BBC Two

    The River Waveney runs between Norfolk and Suffolk, through some of Britain's fast-disappearing marshland. It is host to a delightful diversity of wildlife, and supports many traditional riverside activities, including fishing, eel-catching, and reed-cutting. Throughout last year "Horizon"'s cameras followed the scientists, naturalists, farmers, historians and conservationists whose interests often conflict as they work to investigate, exploit or protect one of nature's resources.

  • S1984E08 A Normal Face

    • March 12, 1984
    • BBC Two

    Horizon presents a report on current research and trends in facial reconstructive surgery.

  • S1984E09 Prisoners of Incest

    • March 19, 1984
    • BBC Two

    In this documentary, Horizon reconstructs a therapy session where a man imprisoned for incest meets his family for first time in two and one half years.

  • S1984E10 Signs of the Apes, Songs of the Whales

    • March 26, 1984
    • BBC Two

    Horizon investigates the linguistic potential of non-human species.

  • S1984E11 Professor Bonner and the Slime Moulds

    • April 9, 1984
    • BBC Two

    In the documentary, Horizon reports on the life of slime moulds and how they provides clues to cell differentiation.

  • S1984E12 The Mind of a Murderer - The Case of the Hillside Strangler

    • April 16, 1984
    • BBC Two

    Horizon presents the first of a two-part documentary about Kenneth Bianchi, the Los Angeles Hillside Strangler, who was convicted of the murder of 12 women even though his defence was that he had no memory of the crimes.

  • S1984E13 The Mind of a Murderer - The Mask of Madness

    • April 23, 1984
    • BBC Two

    Horizon presents the second part of a two-part documentary about Kenneth Bianchi, the Los Angeles Hillside Strangler, who was convicted of the murder of 12 women even though his defence was that he had no memory of the crimes.

  • S1984E14 A Cruel Inheritance

    • April 30, 1984
    • BBC Two

    Horizon reports on new medical techniques to diagnose the inherited diseases; sickle cell anaemia and cystic fibrosis.

  • S1984E15 The Malvern Link

    • May 7, 1984
    • BBC Two

    Horizon investigates the military bias of British scientific industries and the possible consequences if the bias continues.

  • SPECIAL 0x4 Biology at War: The Mystery of Yellow Rain

    • May 15, 1984
    • BBC Two

    In the first part of this special two-part series, Horizon reports on the yellow rain problem in South-east Asia.

  • SPECIAL 0x5 Beyond the Moon

    • July 21, 1984
    • BBC Two

    In this special episode, Horizon brings you a report on space exploration and exploitation. The first half of this episode looks back at the Apollo 11 moon landing, and second the second half looks at the future plans of the space program.

  • SPECIAL 0x6 Biology at War: A Plague in the Wind

    • October 29, 1984
    • BBC Two

    This is the second part, of a two-part special series. In this episode, Horizon looks at the history of germ warfare and the research still continuing today in military labs under deceptive name of defensive biology.

  • S1984E16 Contented Cows and Other Animals

    • November 5, 1984
    • BBC Two

    Horizon explores the behavioural patterns of sheep, cows, chickens, and pigs under both natural and intensive farming conditions.

  • S1984E17 Picking Winners

    • November 12, 1984
    • BBC Two

    Horizon reports on the decline in the amount of gambling leading to a severe reductions in money to fund the scientific research in Britain.

  • S1984E18 The Brain Puzzle

    • November 19, 1984
    • BBC Two

    Horizon documents the current medical research into finding new ways of repairing damage to the brain and the central nervous system.

  • S1984E19 Global Village

    • November 26, 1984
    • BBC Two

    Horizon examines the concept and implications of a global village in Third World countries.

  • S1984E20 Ivan

    • December 3, 1984
    • BBC Two

    In this documentary, Horizon spends a week with a victim of Parkinson's disease and how he has to use considerable muscular effort in order to cope with day-to-day life.

  • S1984E21 A Mathematical Mystery Tour

    • December 10, 1984
    • BBC Two

    Horizon attempts to explain some of the theories proposed by pure mathematicians over the ages.

  • S1984E22 Supercharged

    • December 17, 1984
    • BBC Two

    Horizon presents a chronological history of the development of the racing car during the 15 years prior to World War II.

Season 1985

  • S1985E01 Colourful Notions

    • January 7, 1985
    • BBC Two

    Documentary about colour perception based on the theories of Dr. Edwin Land, which oppose the long-held three-receptor theory of colour vision

  • S1985E02 A World of Their Own

    • January 14, 1985
    • BBC Two

    Horizon takes a look at consultant psychiatrists.

  • S1985E03 Decoding Danebury

    • January 21, 1985
    • BBC Two

    Horizon looks at the way modern archaeologists extract information from a site dig.

  • S1985E04 A Mission to Heal

    • January 28, 1985
    • BBC Two

    This Horizon episode is about a hospital in the African country of Kenya where the medical staff tells of a new approach to health care among the Pokot tribe.

  • S1985E05 The Mystery of the Left Hand

    • February 4, 1985
    • BBC Two

    In this episode, Horizon explores the characteristics of left-handed people.

  • S1985E06 The Theatre of War

    • February 11, 1985
    • BBC Two

    Horizon examines new military technology which will come to dominate the battlefields of the future.

  • S1985E07 The Careful Predator

    • February 25, 1985
    • BBC Two

    This episode of Horizon is about the controversial policy in African nation of Zimbabwe of encouraging villagers to allow wild animals back onto their land.

  • S1985E08 What Einstein Never Knew

    • March 4, 1985
    • BBC Two

    This documentary by Horizon attempts to explain the advances in physics in the search for the ultimate equation that explains the meaning of life, the universe, and everything else in existence.

  • S1985E09 Eurekaaargh!

    • March 11, 1985
    • BBC Two

    Horizon brings you a report by Robert Symes who offers ten golden guidelines on how to be a successful inventor.

  • S1985E10 Careering On

    • March 18, 1985
    • BBC Two

    This is a Horizon follow-up report on the careers of seven British teenagers studying Science 'O' levels back in 1978.

  • S1985E11 How to Film the Impossible

    • March 25, 1985
    • BBC Two

    This episode of Horizon looks at how the world's best special effects technicians create some of Hollywood's most spectacular film scenes.

  • S1985E12 The Food Allergy War

    • April 1, 1985
    • BBC Two

    Horizon investigates how food allergy has developed from the 1950's to the present.

  • S1985E13 The Goddess of the Earth

    • April 15, 1985
    • BBC Two

    Horizon examines a hypothesis that life itself manipulates the planet to enhance it's own survival.

  • S1985E14 IRAS - The Supercooled Eye

    • April 22, 1985
    • BBC Two

    This Horizon documentary examines the Infra-Red Astronomical Satellite (IRAS) which has detected evidence of planetary systems around distant stars.

  • S1985E15 A Prize Discovery

    • April 29, 1985
    • BBC Two

    Horizon reports on the current medical treatment of Malaria and Leukemia.

  • SPECIAL 0x7 Twenty-First Birthday

    • May 20, 1985

    Horizon celebrates twenty one years of work, achievement, and awards with a birthday compilation of highlights from past episodes.

  • SPECIAL 0x8 Halley's Comet - The Apparition

    • November 25, 1985

    This report by Horizon looks into how the apparitions of Halley's comet came to be predicted so accurately.

Season 1986

  • S1986E01 Are You a Racist?

    • January 6, 1986
    • BBC Two

    Horizon presents a documentary about how white racists and black victims of racism volunteered to spend time in an isolated house living and talking about their prejudices.

  • S1986E02 Genesis

    • January 13, 1986
    • BBC Two

    This Horizon episode is about the discovery of a molecular key which may literally unlock the mystery of life for all creatures.

  • S1986E03 Bitter Cold

    • January 20, 1986
    • BBC Two

    Horizon presents a documentary on scientists who take themselves to Antarctica in 1980 to act as physical and mental guinea pigs.

  • S1986E04 The Mould, the Myth and the Microbe

    • January 27, 1986
    • BBC Two

    Horizon explores the myth about the discovery of the antibiotic penicillin.

  • S1986E05 Outbreak: The Microbe Masters the Mould

    • February 3, 1986
    • BBC Two

    In this episode, Horizon explores the question of when antibiotics were first developed it seemed infectious disease might be eliminated, so what has gone wrong?

  • S1986E06 The Wrong Stuff

    • February 10, 1986
    • BBC Two

    This report by Horizon looks inside the airline cockpit and examines the alarming fact that 4 out of 5 crashes are caused by human error.

  • S1986E07 Science...Fiction?

    • February 17, 1986
    • BBC Two

    Horizon investigates the truths of science and it's theories.

  • S1986E08 The Children of Eve

    • February 24, 1986
    • BBC Two

    Horizon explores at the latest discoveries about just where modern man came from.

  • S1986E09 The New Face of Leprosy

    • March 3, 1986
    • BBC Two

    This episode of Horizon documents leprosy in the USA and India with a focus on medical developments for it's cure and control.

  • S1986E10 Hi-Tech a la Francaise

    • March 10, 1986
    • BBC Two

    Horizon investigates the remarkable technological transformation of France over the last 25 years.

  • SPECIAL 0x9 Halley's Comet - The Encounter

    • March 13, 1986
    • BBC Two

    Special on Halley's comet

  • S1986E11 In the Wake of HMS Sheffield

    • March 17, 1986
    • BBC Two

    Will the new strategies and weapons introduced because of the Falklands war be a match for the next generation of weapons? Horizon presents this documentary to answer that question.

  • S1986E12 AIDS: A Strange and Deadly Virus

    • March 24, 1986
    • BBC Two

    Horizon looks at the virus that causes AIDS and the research into vaccines and drugs being developed to counteract the devastating disease of the immune system.

  • S1986E13 The Case of the Frozen Addicts

    • April 7, 1986
    • BBC Two

    In this documentary, Horizon reports on how doctors in America found that addicts using designer drugs developed Parkinson's Disease-like symptoms.

  • S1986E14 Nice Guys Finish First

    • April 14, 1986
    • BBC Two

    In the interview by Horizon, Richard Dawkins discusses selfishness and cooperation, arguing that evolution often favours co-operative behaviour, and focusing especially on the tit for tat strategy of the prisoner's dilemma game.

  • S1986E15 The Men Who Bottled a Cow

    • April 21, 1986
    • BBC Two

    This is an interesting Horizon presentation on decoys that look and smell like cows to the tsetse fly who carry a disease fatal to farm animals.

  • S1986E16 Twice Five Plus the Wings of a Bird

    • April 28, 1986
    • BBC Two

    Horizon researches how we acquire mathematical abilities in the first place.

  • S1986E17 What Makes an Animal Smart?

    • May 12, 1986
    • BBC Two

    This report by Horizon takes a look at the instinctive side of intelligence in animals that shows us that we owe more to instinct than we may care to think.

  • S1986E18 A Handful of Sugar With a Pinch of Salt

    • May 19, 1986
    • BBC Two

    Horizon presents a simple, but effective, cure for diarrea in young children; sugar and salt.

  • S1986E19 Uranus Encounter

    • May 26, 1986
    • BBC Two

    In this episode, Horizon brings you Voyager's encounter with Uranus and the mysteries that are being relayed back to the scientists.

  • S1986E20 Who Built Stonehenge?

    • June 9, 1986
    • BBC Two

    Horizon presents an interview with Prof. C. Renfrew as he questions the accepted wisdom about the origins of Stonehenge in England.

  • S1986E21 Battered Baby - From Generation to Generation

    • June 16, 1986
    • BBC Two

    This is the first part of a two-part series on battered children.

  • S1986E22 Battered Baby - Breaking the Chain

    • June 23, 1986
    • BBC Two

    This is the second part of a two-part series on battered children.

  • S1986E23 Doctors to Be

    • June 30, 1986
    • BBC Two

    In a unique project, Horizon follows a group of medical students into the next century.

Season 1987

  • S1987E01 The Twentyfive Hour Clock

    • January 5, 1987
    • BBC Two

    Report on research into biological body clocks, which can effect emotional and physical health and well-being.

  • S1987E02 The Search for the Disappeared

    • January 12, 1987
    • BBC Two

    Report on how forensic scientists ae identifying individual victims amongst the people murdered by Argentina's military juntas, by examination and genetic testing of their remains.

  • S1987E03 The Blind Watchmaker

    • January 19, 1987
    • BBC Two

    In this interview by Horizon, zoologist Richard Dawkins investigates an attack on evolution by scientific creationists, based on the book of the same name by the famous zoologist.

  • S1987E04 Riding The Stack

    • January 26, 1987
    • BBC Two

    Astronauts and space shuttle designers talk about the risks of space flight, in the light of the space shuttle disaster of January 1986.

  • S1987E05 Bruno Bettelheim: The Man Who Cared For Children

    • February 2, 1987
    • BBC Two

    Two part documentary on psychologist Bruno Bettelheim and his work with emotionally disturbed children.

  • S1987E06 Bruno Bettelheim: A Sense of Surviving

    • February 9, 1987
    • BBC Two
  • S1987E07 Energy From Outer Space

    • February 16, 1987
    • BBC Two

    Report on exploration into releasing energy sources which came from outer space during the formation of the earth, 4,500 million years ago, and have lain dormant under the earth's crust. In Sweden a five mile deep drill hole was made to unleash this energy.

  • S1987E08 The Return of the Osprey

    • February 23, 1987
    • BBC Two

    Documentary on the Osprey in north east America, where its natural habitat was being damaged by the use of DDT, but after some conservation work the Osprey is returning to the area.

  • S1987E09 Can AIDS Be Stopped

    • March 2, 1987
    • BBC Two

    Report on the development of the AIDS virus, and current research into vaccines to combat the disease.

  • S1987E10 Police Stress: The John Wayne Syndrome

    • March 9, 1987
    • BBC Two

    Documentary on the increasing pressure put on the British police resulting in stress and psychological disorders, and also on the work of Dr. Douglas Duckworth, a psychologist at Leeds University who has worked with the police on these problems.

  • S1987E11 To Engineer Is Human

    • March 16, 1987
    • BBC Two

    Engineer Henry Petroski explains why engineering can never be an exact science and looks at examples of engineering failures.

  • S1987E12 The Magma Chamber

    • March 23, 1987
    • BBC Two

    Report on the research into volcanoes by British scientists Professor Geoff Brow n and Dr. Hazel Rymer, who have developed a technique of exploring the magma chambers of volcanoes and predicting when they will erupt.

  • S1987E13 Broken Images

    • March 30, 1987
    • BBC Two

    Report on two sufferers of visual agnosia. The condition affects their ability to impose order on the visual world, even though they are not blind, but it does reveal a great deal about normal perception.

  • S1987E14 Trial Babies

    • April 6, 1987
    • BBC Two

    Report on the different tests done on pregnant women to detect abnormalities in the foetus, with investigation of why these tests are not available in all pregnancies.

  • S1987E15 After Chernobyl - Closer To Home

    • April 13, 1987
    • BBC Two

    Report on the safety of UK nuclear power stations, following the accident at Chernobyl in the USSR in 1986. The programme focuses on the nuclear installation at Hartlepool on Teeside, which has the smallest evacuation zone in the western world.

  • SPECIAL 0x103 Life Story

    • April 27, 1987
    • BBC Two

    Dramatisation of the race at the University of Cambridge in 1951 for the discovery of DNA.

  • S1987E16 Making Sex Pay

    • May 11, 1987
    • BBC Two

    James Gould, Professor of Biology at Princeton University, lectures on the mating habits of animals and humans.

  • S1987E17 The Anthropic Principle

    • May 18, 1987
    • BBC Two

    Discussion of the Anthropic Principle, a scientific theory for man's place in th e Universe.

  • S1987E18 Aircrash: The Burning Issue

    • June 1, 1987
    • BBC Two

    Report on the need for improved safety features on airplanes in particular the desirability of smoke hoods, plus an interview with a survivor of the 1985 Manchester aircrash.

  • S1987E19 The Riddle of the Joints

    • June 8, 1987
    • BBC Two

    Report on research into rheumatoid arthritis.

  • S1987E20 To Catch a Falling Star

    • May 15, 1987
    • BBC Two

    Report on the future and commercial benefit of research into astronomy conducted by the Royal Greenwich Observatory and other scientific institutions in Great Britain.

  • S1987E21 In the Light of New Information

    • June 22, 1987
    • BBC Two

    Report on the evolution of laser light technology for communication in the 21st century, with a dramatised account of the effect of the technology on our daily lives.

  • S1987E22 Janice's Choice

    • June 29, 1987
    • BBC Two

    Janice Blenkharn's mother died of Huntington's Chorea, which any child of a victim has a 50-50 chance of inheriting. Janice is faced with the choice of having a test, developed after research in South America, to see if she has this incurable genetic disease.

Season 1988

  • S1988E01 The Transplanted Brain

    • January 4, 1988
    • BBC Two

    This episode of Horizon looks at a new approach that holds hope for the treatment of Parkinson's Disease.

  • S1988E02 Death of a Star

    • January 11, 1988
    • BBC Two

    Horizon documents the first sighting of a star in supernova at its initial stages. The study of the spacial event provides fascinating insight into the life of our own universe.

  • S1988E03 Playing With Madness

    • January 18, 1988
    • BBC Two

    In the report by Horizon, they looks at manic depression and how is now known that it has a strong genetic component.

  • S1988E04 The Canal in the Jungle

    • January 25, 1988
    • BBC Two

    This episode of the Horizon explores the Panama Canal, now a billion dollar commercial sea crossroad between continents. The future of the canal is in danger because of damage to rain forests.

  • S1988E05 Death of the Working Classes

    • February 1, 1988
    • BBC Two

    Horizon investigates how those who are born into a working class family are at greater risk of dying early than if born a child of the professional classes.

  • S1988E06 The Greenhouse Effect

    • February 8, 1988
    • BBC Two

    This documentary report by Horizon examines the devastating effects of the Greenhouse Effect (earth's temperature rising) and how man is causing it.

  • S1988E07 Struggling for Control

    • February 15, 1988
    • BBC Two

    This is a Horizon report on Britain's air traffic control capabilities and the use of outdated and unreliable equipment.

  • S1988E08 Thinking

    • February 22, 1988
    • BBC Two

    Explores the limits of digital computers and artificial intelligence. Includes the views of John Searle, a philosopher at the University of California who refutes the claims for 'thinking' machines.

  • S1988E09 Patients on Trial

    • February 29, 1988
    • BBC Two

    Horizon looks at the experimental treatment of four cancer patients in the USA who have volunteered to try the LAK/Interleuken 2 treatment.

  • S1988E10 Purple Warrior - Rules of Engagement

    • March 7, 1988
    • BBC Two

    This is part one of a two-part series by Horizon reporting on a military exercise code named Purple Warrior which is designed to test lessons learned during the Falklands war.

  • S1988E11 Purple Warrior - Limited War

    • March 14, 1988
    • BBC Two

    This is part two of a two-part series by Horizon reporting on a military exercise code named Purple Warrior which is designed to test lessons learned during the Falklands war.

  • S1988E12 The Heart of Another

    • March 28, 1988
    • BBC Two

    Horizon looks at the progress of two heart disease patients at Montreal's Royal Victoria Hospital in Britain.

  • S1988E13 Easter Island - The Secrets

    • April 11, 1988
    • BBC Two

    This is part one of a two-part Horizon series about the mystery of Easter Island, the stone statues, and the civilization that erected them.

  • S1988E14 Easter Island - The Story

    • April 18, 1988
    • BBC Two

    This is part two of a two-part Horizon series about the mystery of Easter Island, the stone statues, and the civilization that erected them.

  • S1988E15 Doctors to Be - Trial by Interview

    • April 23, 1988
    • BBC Two

    Horizon presents part one of a three-part series on the education of doctors in Britain. In this episode, we look at the ordeal of an interview faced by two potential students applying to St. Mary's Medical School.

  • S1988E16 Doctors to Be - The Knowledge

    • April 24, 1988
    • BBC Two

    Horizon presents part two of a three-part series on the education of doctors in Britain. In this episode, we examine the first two years of education at St. Mary's Medical School and at the exams that have to be passed.

  • S1988E17 Doctors to Be - Welcome to the Real World

    • April 25, 1988
    • BBC Two

    Horizon presents part three of a three-part series on the education of doctors in Britain. In this episode, a group of medical students are followed from the beginning of their third year of medical education up to the point where they meet patients for the first time.

  • S1988E18 Cancer at Bay

    • May 2, 1988
    • BBC Two

    Horizon investigates if changes in lifestyle could reduce the risks of cancer.

  • S1988E19 Traces of Murder

    • May 9, 1988
    • BBC Two

    In this documentary, Horizon explores how to solve murder cases with the help of new technology.

  • S1988E20 The Hope of Progress

    • May 16, 1988
    • BBC Two

    Horizon interviews the scientist and Nobel prize winner, Peter Medawar.

  • S1988E21 A Newsday Revolution

    • May 23, 1988
    • BBC Two

    This report by Horizon covers how the electronic revolution in television news affects the way it is gathered, edited, and presented.

  • S1988E22 A Good Test?

    • June 6, 1988
    • BBC Two

    Horizon investigates the use of psychological techniques in job recruitment and career development.

  • S1988E23 Superconductor - The Race for the Prize

    • June 13, 1988
    • BBC Two

    This Horizon episode presents the breakthroughs in superconductivity research in several countries.

  • S1988E24 Believe Me

    • June 27, 1988
    • BBC Two

    Horizon brings you a report on Myalgic Encephalomyelitis which is a neurological disease that has been puzzling doctors for more than 30 years.

  • S1988E25 The Quest for Tannu Tuva

    • July 4, 1988
    • BBC Two

    Richard Feynman was not only an iconoclastic and influential theoretical physicist and Nobel laureate but also an explorer at heart. Feynman through video recordings and comments from his friend and drumming partner Ralph Leighton tell the extraordinary story of their enchantment with Tuva, a strange and distant land in the centre of Asia. While few Westerners knew about Tuva, Feynman discovered its existence from the unique postage stamps issued there in the early 20th century. He was intrigued by the unusual name of its capital, Kyzyl, and resolved to travel to the remote, mountainous land. However, the Soviets, who controlled access, were mistrustful, unconvinced that he was interested only in the scenery. They obstructed his plans throughout 13 years. The majority of the scenes are extended narratives by Feynman. There is included a delightful extended discussion and demonstration of Feyman's bongo playing. Feynman explains how he used a phrase book of the Tuva language to write and express an interest in visiting there. The proposed trip took years to arrange. The programme never does get to show Feyman in Tuva; he died of abdominal cancer a few days after the recorded interview, at age 69 in February 1988. The story is interspersed with earlier recorded conversations by Feynman that add his perspectives on the nature of physics. So, this is not a travel documentary at all; rather it is another fascinating insight into the exciting personality of Richard Feynman. "You have no responsibility to live up to what other people think you ought to accomplish." - Richard Feynman (1918-1988).

  • SPECIAL 0x10 The Diary of Discovery

    • September 28, 1988

    This Horizon special follows the 20 months preparation of the five astronauts who are to man the American space shuttle Discovery launching on the 29th of September in 1988. This is the first shuttle flight since the Challenger disaster in January 1986.

Season 1989

  • S1989E01 The Book of Man

    • January 9, 1989
    • BBC Two

    Horizon looks again at the Human Genome Project which aims to decipher or sequence all genes.

  • S1989E02 The Poison that Waits

    • January 16, 1989
    • BBC Two

    Horizon reports on the abnormally high incidence of and the early onset of diseases such as senile dementia and Parkinson's disease on the island of Guam in the Pacific. Scientists have now linked the diseases to a poison in the native cycad fruit.

  • S1989E03 Perils of the Deep

    • January 23, 1989
    • BBC Two

    In this episode, Horizon presents evidence that even diving in relatively shallow waters can cause serious long term damage to the brain and spinal cord.

  • S1989E04 Smart Weapons

    • January 30, 1989
    • BBC Two

    This documentary by Horizon demonstrates how smart Weapons use computers to destroy targets, that until now, were only able to be threatened by nuclear weapons.

  • S1989E05 Wasting the Alps

    • February 6, 1989
    • BBC Two

    Horizon looks at the damaging effects of pollution and tourism on the Swiss Alps in Europe.

  • S1989E06 In the Last Resort

    • February 13, 1989
    • BBC Two

    Horizon answers the question: What are the alternatives for the elderly in Britain who can't live at home, or in a rest home or nursing home, or part of a sheltered accommodation?

  • S1989E07 Gaze in Wonder

    • February 20, 1989
    • BBC Two

    Horizon brings you an interview with Prof. Eric Laithwaite who presents an engineer's personal view of nature and how new inventions already exist in nature.

  • S1989E08 In My Lifetime?

    • February 27, 1989
    • BBC Two

    In this episode, Horizon presents an investigation into the state of medical research in neurological disorders and the issues with its funding in Britain.

  • S1989E09 Concerto

    • March 6, 1989
    • BBC Two

    This documentary by Horizon investigates new technology applied to music.

  • S1989E10 Black Schizophrenia

    • March 13, 1989
    • BBC Two

    Horizon covers the story of the Nottingham psychiatrists who study the human race to see who is mostly likely to develop schizophrenia.

  • S1989E11 Trial in the Jungle

    • March 20, 1989
    • BBC Two

    This Horizon report covers the Tasaday, a remote Philippine tribe apparently living in the stone age, who are now seen as a hoax. How did they do it?

  • S1989E12 Who Will Make Me Better?

    • April 3, 1989
    • BBC Two

    Horizon explores three types of alternative medicine; homoeopathy, acupuncture, and diagnosing food allergies by testing your toes.

  • S1989E13 A Wonderful Life

    • April 17, 1989
    • BBC Two

    Horizon presents a biography of the philosopher Ludwig Wittgenstein who lived from 1889 to 1951.

  • S1989E14 Why Buildings Make You Sick

    • April 24, 1989
    • BBC Two

    This is a Horizon documentary about an investigation into the so-called "sick building syndrome" where occupants contract illnesses because of the environment within the building.

  • S1989E15 Jubilee

    • May 8, 1989
    • BBC Two

    How valid have been Horizon's criticisms of scientific orthodoxy and to what effect have the programs had?

  • S1989E16 Crash

    • May 15, 1989
    • BBC Two

    Horizon investigates how many of the tragedies on our roads in Britain could be avoided by the introduction of technical and legislative changes.

  • S1989E17 The New Sixth Sense

    • May 22, 1989
    • BBC Two

    Horizon follows J. Hooper, a diabetic, as she explores various aspects of biosensor technology.

  • S1989E18 Clive Sinclair: The Anatomy of an Inventor

    • June 12, 1989
    • BBC Two

    Horizon presents a profile of noted inventor Clive Sinclair with his family and colleagues reminiscing and analysing his successes and failures.

  • S1989E19 Newpin: A Lifetime

    • June 19, 1989
    • BBC Two

    In this story, Horizon explores how the destructive patterns of child abuse and depression can be broken by concentrating on the mothers of young children.

  • S1989E20 Time of Darkness

    • June 26, 1989
    • BBC Two

    In this Horizon episode, we look at the effects on the climate from volcanic eruptions.

Season 1990

  • S1990E01 Oil Spill

    • January 8, 1990
    • BBC Two

    After the Exxon Valdez oil spill in 1989, Horizon looks at tanker design and the technology used for dealing with major oil slicks.

  • S1990E02 Medicine 2000

    • January 15, 1990
    • BBC Two

    Horizon reports on medical developments in Britain which could mean by the year 2000, health care will be very different.

  • S1990E03 Food Irradiation: Would You Buy It?

    • January 22, 1990
    • BBC Two

    Horizon examines the history of research into irradiated food.

  • S1990E04 From Earth to Miranda

    • January 29, 1990
    • BBC Two

    In this Horizon documentary, we look at how NASA launched the Voyager space probes to explore the planets of the outer solar system.

  • S1990E05 Encounter With Neptune

    • February 5, 1990
    • BBC Two

    This report by Horizon presents the Voyager space probe close up encounter with the planet Neptune.

  • S1990E06 Guess What's Coming to Dinner?

    • February 12, 1990
    • BBC Two

    Horizon looks at the potential implications of genetically engineering plants.

  • S1990E07 The First 14 Days

    • February 19, 1990
    • BBC Two

    Horizon brings you a documentary on embryology - the branch of biology that studies the formation and early development of living organisms from the moment of conception.

  • S1990E08 The 10,000 Year Test

    • March 5, 1990
    • BBC Two

    Horizon reports on how America has chosen to bury all of its most lethal radioactive waste under Yucca mountain in the state of Nevada.

  • S1990E09 Hurricane!

    • March 12, 1990
    • BBC Two

    Horizon explores the inside of Hurricane Gilbert as it neared Jamaica on a direct course for the United States.

  • S1990E10 The Britannic Greenhouse

    • March 19, 1990
    • BBC Two

    Horizon investigates how British scientists have begun to experiment to predict the effects of a changing climate from Greenhouse gases.

  • S1990E11 Cold Fusion

    • March 26, 1990
    • BBC Two

    This story by Horizon investigates cold fusion

  • S1990E12 The Quake of '89 - The Final Warning?

    • April 2, 1990
    • BBC Two

    Horizon presents the real story of seismic neglect and the failure of the San Francisco city government to protect its citizens.

  • S1990E13 The Sharpest Shot of the Universe

    • April 9, 1990
    • BBC Two

    In this episode, Horizon looks at the Hubble space telescope, hailed as the greatest advance in astronomy since Galileo.

  • S1990E14 The Company of Ants and Bees

    • April 23, 1990
    • BBC Two

    What can we learn from insects? Professor James Gould explains on Horizon that the human society may be able to predict their own future based on the society structure of ants and bees.

  • S1990E15 The Intelligent Island

    • April 30, 1990
    • BBC Two

    This Horizon documentary looks at the radical transformations in the Singapore society as its technology extends into monitoring, logging, and linking up all businesses, information, and aspects of life on computer systems. The country's ultimate plan is to link the entire population electronically through the world's most advanced videotext system called Teleview. The report raises the question of what type of society this may create and also the political implications of such a system.

  • S1990E16 Legacy of a Volcano

    • May 14, 1990
    • BBC Two

    Horizon looks at the area around Mt. St. Helens 10 years after the volcanic eruption that devastated more 500 square kilometres of forest land in just minutes.

  • S1990E17 Do Cows Make You Mad?

    • May 21, 1990
    • BBC Two

    This episode of Horizon is about BSE transmitted in cattle feed and causing the fatal Creutzfeldt-Jakob syndrome in humans.

  • S1990E18 The Child Mothers

    • June 4, 1990
    • BBC Two

    Horizon investigates how teenage pregnancy is now posing massive health and social problems in many societies.

  • SPECIAL 0x11 Making an Honest Fiver

    • June 6, 1990
    • BBC Two

    This Horizon special explores the production and processes behind the scenes of the new five pound note to be launched on the 7the June, 1990, in Britain. It considers the design and production of money and the intricate techniques developed to prevent forgeries.

  • S1990E19 Signs of Life

    • June 11, 1990
    • BBC Two

    Horizon examines the possibility of scientists, either intentionally or unintentionally, creating living forms which could enjoy an independent existence, initially confined to computers and telephone networks, and in the form of computer viruses.

  • S1990E20 AIDS: A Quest for a Cure

    • June 25, 1990
    • BBC Two

    Horizon investigates new breakthroughs in the scientific study, analysis, and reproduction of cells and their compounds, which may lead to the development of a cure for the AIDS virus.

  • SPECIAL 0x12 Red Star in Orbit: The Invisible Spaceman

    • December 7, 1990

    This Horizon special episode is part one of a three part series on the projects, cosmonauts, and engineers involved in the Soviet Union space program.

  • SPECIAL 0x13 Red Star in Orbit: The Dark Side of the Moon

    • December 14, 1990

    This Horizon special episode is part two of a three part series on the projects, cosmonauts, and engineers involved in the Soviet Union space program.

  • SPECIAL 0x14 Red Star in Orbit: The Mission

    • December 21, 1990

    This Horizon special episode is the last part of a three part series on the projects, cosmonauts, and engineers involved in the Soviet Union space program. In this episode, two Soviet cosmonauts risk their lives earlier this year in a dangerous space walk to try and repair their stricken craft.

Season 1991

  • S1991E01 Sudden Death

    • January 7, 1991
    • BBC Two

    Documentary considering the nature of sudden death, the effects of coronary heart disease and the part they play.

  • S1991E02 Keen as Mustard

    • January 14, 1991
    • BBC Two

    This Horizon episode tells the story of the top secret experiments carried out to test the effects of mustard gas.

  • S1991E03 Smokers Can Harm Your Health

    • January 21, 1991
    • BBC Two

    Horizon investigates the case against passive smoking and reveals new evidence of its danger.

  • S1991E04 Coming In from the Cold

    • January 28, 1991
    • BBC Two

    Horizon reports on the new arms verification industry emerging due to the new arms control treaties.

  • S1991E05 Small Problems with the Mirror

    • February 4, 1991
    • BBC Two

    Horizon follows astronomer's efforts to rescue the Hubble space telescope and restore its original planned performance.

  • S1991E06 Two Weeks to Save the Earth

    • February 10, 1991
    • BBC Two

    Looks at the work of Earthwatch, and some of the many people who spend their holidays contributing to learning about the planet by helping on prehistoric digs, recording fish noises, tracking rodents, measuring grass an leaves and counting insects in places all over the world, often suffering much discomfort and boredom.

  • S1991E07 California Dreaming

    • February 11, 1991
    • BBC Two

    This Horizon documentary presents the US auto industry's response to clean-up the air in Los Angeles, California by the year 2007.

  • S1991E08 The Day the Earth Melted

    • February 25, 1991
    • BBC Two

    This episode of Horizon examines 20 years of research which has led to a new theory on how the earth's crust was made.

  • S1991E09 The Curse of Karash

    • February 25, 1991
    • BBC Two

    Looks at the phenomenon of the outbreaks of a lethal kidney disease amongst groups of people scattered around an area of the Balkans, covering Yugoslavia, Romania and Bulgaria, over the past 30 years.It considers the attempts and theories of scientists from all these countries over the years to find the cause of the disease.

  • S1991E10 Playing at Noah

    • March 4, 1991
    • BBC Two

    This Horizon interview presents Dr. Ulysses Seal who believes the "frozen zoo" concept is the best way to save vanishing species for the future generations.

  • S1991E11 Cashing in on Paradise

    • March 11, 1991
    • BBC Two

    This Horizon episode considers the pros and cons of "ecotourism" and the effects of tourism on the environment. The coral reefs of areas of Belize are suffering already from the effects tourists coming to the area. Rain forests and ape sanctuary areas employing the local community are also becoming a danger to the delicate environments.

  • S1991E12 The Terracotta Time Machine

    • March 18, 1991
    • BBC Two

    This episode of Horizon explores the Natural History Museum and its philosophy, both past and present. We look at some of the recent innovations that have been introduced in the past few years. The recent director of the museum, Dr. Neil Chalmers, justifies his policies, restructuring, and the academics. The scientists, who are adversely affected by the policies, air their own worries and concerns.

  • S1991E13 Measuring the Roof of the World

    • March 25, 1991
    • BBC Two

    Horizon examines the problems and cartography involved in mapping mountains such as Mount Everest. They follow the history of of mapping from those surveys conducted by mountaineering expeditions and early explorers, to modern mapping techniques using planes and satellites. Horizon also considers the startling news that K2 may actually be the world's tallest mountain according to recent satellite calculations.

  • S1991E14 The First Americans

    • April 15, 1991
    • BBC Two

    Horizon looks at archaeologist's new theories surrounding the population of the New World over 11,000 years ago

  • S1991E15 Inside Chernobyl's Sarcophagus

    • April 22, 1991
    • BBC Two

    Documentary following the clean-up operation at Chernobyl and the elite team of Soviet scientists working in areas of radiation that would be considered lethal in the West, whilst they hunt for missing fuel, uranium and plutonium, anxious that these could cause a second accident.

  • S1991E16 Colonising Cyberspace

    • April 29, 1991
    • BBC Two

    Horizon presents a documentary on how virtual reality can make humans feel as if they are present in the computer simulated artificial world. What is the future of all this powerful, seductive technology?

  • S1991E17 Emerging Viruses

    • May 13, 1991
    • BBC Two

    In this report, Horizon follows a group of eminent scientists who believe we have become too complacent about infectious diseases.

  • S1991E18 Camelford - A Bitter Aftertaste

    • May 20, 1991
    • BBC Two

    Horizon explores the Camelford disaster, in which aluminium sulphate was accidentally added to drinking water in Cornwall in 1988.

  • S1991E19 Of Big Bangs, Stick Men and Galactic Holes

    • June 3, 1991
    • BBC Two

    Several astronomers and scientists explore the concepts of "hot/cold dark space" and whether or not the "Big Bang" theory is actually correct, as well as considering the structures of galaxies.

  • S1991E20 Food For Thought

    • June 10, 1991
    • BBC Two

    This story by Horizon looks at the expanding and controversial area of "smart drugs".

  • S1991E21 The Long Road to the West

    • June 17, 1991
    • BBC Two

    In this Horizon episode, we look at the problems facing the Carl Zeiss optics company of Jena and other companies in the scientific sector of the former Eastern block countries. Following the reunification of Germany and the end of the Cold War, harsh economic conditions and the lack of scientific progress over the preceding decades in particular are explored.

  • S1991E22 Half Hearted About Semi-Skimmed

    • June 24, 1991
    • BBC Two

    Horizon examines the social and scientific issues around the cholesterol debate.

  • S1991E23 T-Rex Exposed

    • July 1, 1991
    • BBC Two

    Considers some of the different theories surrounding the Tyrannosaurus Rex dinosaur, and other members of the same family, and shows how calculations about size, speed, weight, etc. are made from skeletons, some of them recently discovered in Montana. Scientists also use the latest x-ray/scanning techniques to examine skulls and bones for information.

Season 1992

  • S1992E01 The Shadow of Breast Cancer

    • January 6, 1992
    • BBC Two

    Horizon presents a new study that has highlighted the case of breast cancer.

  • S1992E02 Pest Wars

    • January 13, 1992
    • BBC Two

    Horizon examines the advantages and disadvantages of biological pest control.

  • S1992E03 Molecules With Sunglasses

    • January 20, 1992
    • BBC Two

    About the original discovery in 1985 of a third form of solid carbon, named Buckminsterfullerene after the architect who invented geodesic domes. The two scientists who discovered the material glimpsed it for brief seconds only in their lasers but neither they nor other scientists subsequently could make the substance last long enough in the laser to prove their theory. Then in 1990, a couple of physicists with an arc-welder in a bell-jar found they could make as much Buckminsterfullerene as they liked, and industrial applications opened up, with talk of new polymers, molecular ball-bearings, lubricants and super- conductors. Meanwhile, the original discoverers were turning back to the fundamental questions surrounding the discovery, such as how and why does it form; does it exist in space or is it the solution to one of the great mysteries of the universe.

  • S1992E04 In Search of the Noble Savage

    • January 27, 1992
    • BBC Two

    Horizon explores the ecological track record of the North American Indians.

  • S1992E05 Malaria: Battle of the Merozoites

    • February 3, 1992
    • BBC Two

    In this episode, Horizon look at attempts to persuade major respected organizations to do controlled trials on a synthetic malaria vaccine.

  • S1992E06 The Black Sun

    • February 17, 1992
    • BBC Two

    Horizon follows five teams of scientists on the island of Mauna Kea in Hawaii as they wait for a solar eclipse.

  • S1992E07 Hitler's Bomb

    • February 24, 1992
    • BBC Two

    Horizon investigates how in 1939, the Nazis led the race for the atomic bomb. Did scientific errors rob Hitler of a victory over the allies?

  • S1992E08 An Expensive Theology

    • March 2, 1992
    • BBC Two

    This episode of Horizon looks at Britain's science spending and how it is falling behind it's competitors.

  • S1992E09 The Strange Life and Death of Dr. Turing

    • March 9, 1992
    • BBC Two

    Horizon presents the life and work of mathematician Dr. Alan Turing.

  • S1992E10 Hot Jam in the Doughnut

    • March 16, 1992
    • BBC Two

    This episode of Horizon is about how nuclear fusion has been heralded as the power of the future with the promise of clean affordable energy.

  • S1992E11 A Diet for a Lifetime

    • March 30, 1992
    • BBC Two

    Horizon presents a story about what a women eats before and during pregnancy can determine the diseases her children may suffer from later in their life.

  • S1992E12 Before Babel

    • April 6, 1992
    • BBC Two

    Horizon explores the development of languages all over the world and attempts to reconstruct the first spoken words.

  • S1992E13 The Man who Moved the Mountains

    • April 13, 1992
    • BBC Two

    In this report, Horizon presents that scientific observations have shown that the landscape is constantly moving.

  • S1992E14 Iceman

    • April 27, 1992
    • BBC Two

    Horizon reports on the investigation into a well-preserved human corpse found frozen in an Alpine glacier.

  • S1992E15 Taking the Credit

    • May 11, 1992
    • BBC Two

    Horizon investigates the claims by rival American and French scientists as to who first discovered the HIV virus.

  • S1992E16 Fast Life in the Food Chain

    • May 18, 1992
    • BBC Two

    In this story, Horizon presents an investigation into the research to make livestock and poultry grow bigger and stronger.

  • S1992E17 Dodging Doomsday

    • June 1, 1992
    • BBC Two

    Horizon brings you this report to explain when animal communities exceed carrying capacities of their environments, they crash spectacularly. Will this also happen to humans?

  • S1992E18 A Question of Sport...

    • June 8, 1992
    • BBC Two

    Horizon presents the current evidence of a massive sporting fraud in the former Eastern Germany that has now been uncovered. The evidence shows that the East German Olympic success through the 1980's was due in part to the sophisticated use of drugs, a practice which the East German state endorsed.

  • S1992E19 Genes R Us

    • June 15, 1992
    • BBC Two

    This Horizon program looks at the stereotyped image of the scientist.

  • SPECIAL 0x15 A Close Encounter of the Second Kind

    • July 10, 1992

    This Horizon special program explores what happened when the "Giotto" explorer spacecraft passed within 100 kilometres of Halley's Comet.

  • SPECIAL 0x16 Hide and Seek in Iraq

    • August 23, 1992

    This documentary by Horizon reveals the disturbing discoveries made in over 40 inspections looking for weapons of mass destruction in Iraq.

  • SPECIAL 0x17 The Truth About Sex

    • October 12, 1992

    This report by Horizon brings you the results of a landmark survey about sex.

Season 1993

  • S1993E01 Awakening the Frozen Addicts

    • January 4, 1993
    • BBC Two

    Horizons presents a report on a daring Swedish operation that transplants foetal tissue into the brains of Parkinson's disease sufferers.

  • S1993E02 Cheating Time

    • January 11, 1993
    • BBC Two

    Horizon investigates the current benefits and disadvantages of Hormone Replacement Therapy (HRT).

  • S1993E03 TB - The Forgotten Plague

    • January 18, 1993
    • BBC Two

    This Horizon episode is about the new and terrible threat from tuberculosis which kills more people than any other infection.

  • S1993E04 No Ordinary Genius (1)

    • January 25, 1993
    • BBC Two

    This is the first part of a two-part Horizon series presenting a portrait of Richard Feynman, the American Nobel Prize winning physicist.

  • S1993E05 No Ordinary Genius (2)

    • February 1, 1993
    • BBC Two

    This is the second part of a two-part Horizon series presenting a portrait of Richard Feynman, the American Nobel Prize winning physicist.

  • S1993E06 Mars Alive

    • February 8, 1993
    • BBC Two

    This Horizon episode attempts to answer the question if it will be possible to 'terraform' Mars by creating a new atmosphere, and then adding water and plants to make the planet habitable.

  • S1993E07 Suggers, Fruggers and Data-Muggers

    • February 15, 1993
    • BBC Two

    Horizon investigates how market research, opinion polls, TV ratings, and consumer surveys have got it disastrously wrong. Commercial decisions depend increasingly on this information, but just how good is that information?

  • S1993E08 The Pyramid Builders

    • February 22, 1993
    • BBC Two

    This Horizon documentary looks at how the ancient Egyptians built the pyramids without the use of the wheel, ramps, or levers.

  • S1993E09 Here Be Monsters

    • March 1, 1993
    • BBC Two

    This documentary by Horizon looks at how the Hubble space telescope is uncovering evidence of black holes in our distant galaxies.

  • S1993E10 Iceman (Update)

    • March 8, 1993
    • BBC Two

    This is a Horizon update to the story of the Stone Age man found frozen in an Alpine glacier in 1991.

  • S1993E11 Whatever Happened to Star Wars

    • March 15, 1993
    • BBC Two

    Horizon shows how American scientists struggled to fulfil the dreams which challenged fundamental scientific laws.

  • S1993E12 Resurrecting the Dead Sea Scrolls

    • March 22, 1993
    • BBC Two

    In this episode, Horizon examines the latest scientific evidence about the Dead Sea Scrolls.

  • S1993E13 Dante Goes to Hell

    • March 29, 1993
    • BBC Two

    Horizon presents the story of a robot named Dante, who goes into an active volcano in Antarctica to find out if volcanoes contribute to the ozone hole in our atmosphere.

  • S1993E14 Ghosts in the Dinosaur Graveyard

    • April 5, 1993
    • BBC Two

    Follows a team of archaeologists led by Michael Novacek as they try to retrace the steps of an expedition launched by the American Museum of Natural History in the 1920's. The original expedition sought the origins of humanity but instead came across a virtual graveyard of the dinosaurs.

  • S1993E15 The New Alchemists

    • April 19, 1993
    • BBC Two

    Horizon reports on scientists who are planning smart aircraft wings and smart buildings that can sense earthquakes.

  • S1993E16 Allergic to the 20th Century

    • May 10, 1993
    • BBC Two

    In this episode, Horizon examines Asthma, the illness that is the most common condition of the developed world.

  • S1993E17 Wot U Looking At?

    • May 24, 1993
    • BBC Two

    Horizon looks at causes of violence and asks psychologists to interview men and boys with a record of violence.

  • S1993E18 The Electronic Frontier

    • June 7, 1993
    • BBC Two

    In this story, Horizon explores the endless stream of digital information available on demand to the public, but do we need, or even want it?

  • S1993E19 A Vital Poison

    • June 14, 1993
    • BBC Two

    Horizon describes how researchers discovered that a lethal gas, called nitric oxide, was behind some of the most basic functions of our bodies.

  • S1993E20 Chimp Talk

    • June 21, 1993
    • BBC Two

    This documentary by Horizon looks back into the 1980's where the work of pioneer researchers trying to determine if chimpanzees could understand language was attacked as charlatanism. Now the public opinion has moved back in favour of the idea that apes can indeed talk to us. The program looks at the latest developments in the chimpanzee language laboratories in America.

  • S1993E21 Life is Impossible

    • June 28, 1993
    • BBC Two

    Horizon investigates how life began on Earth. Did it evolve on land surfaces on Earth, in the sea, or in space?

  • SPECIAL 0x18 Assault on the Male

    • October 31, 1993

    This Horizon special looks at the mysterious changes in wildlife that has been reported in the USA and that man's reproduction may also be adversely effected.

Season 1994

  • S1994E01 Small Arms, Soft Targets

    • January 10, 1994
    • BBC Two

    Horizon brings you the international campaign to frame the laws of war by limiting the design and use of weapons aimed at "soft targets".

  • S1994E02 The Last Mammoth

    • January 17, 1994
    • BBC Two

    This Horizon documentary explores theories about the reasons for the extinction of mammoths including those which survived on the Island of Wrangel.

  • S1994E03 The Man Who Made Up His Mind

    • January 24, 1994
    • BBC Two

    This is a Horizon episode that attempts to answer the question, "What is a mind?" and how does your brain create it? Gerald Edelman thinks he has the answer.

  • S1994E04 Genie

    • January 31, 1994
    • BBC Two

    Horizon brings you the story about a 13 year old girl who had lived most of her life tied up in the back room of her parent's house since the time she was born.

  • S1994E05 Death Wish - The Untold Story

    • February 7, 1994
    • BBC Two

    In this report by Horizon, we look at a type of cancer which cured itself. The cancer cells were killing themselves and finding out why may revolutionize future cancer treatment.

  • S1994E06 Air Crash - The Deadly Puzzle

    • February 14, 1994
    • BBC Two

    Horizon reports on a team investigating the mysterious disappearance of an airliner in 1992 that was flying over the Panamanian jungle.

  • S1994E07 Hunt for the Doomsday Asteroid

    • February 28, 1994
    • BBC Two

    In this documentary, Horizon tries to answer the question if "Star Wars" technology could be used to destroy meteors big enough to threaten life on earth.

  • S1994E08 Hubble Vision

    • March 7, 1994
    • BBC Two

    This Horizon episode follows the rescue and repair mission carried out by the shuttle astronauts on the Hubble Space Telescope.

  • S1994E09 Some Liked It Hot

    • March 14, 1994
    • BBC Two

    Horizon explores scientific discoveries made in extraordinary ways.

  • S1994E10 Too Close to the Sun

    • March 21, 1994
    • BBC Two

    Horizon examines the continuing, bitter controversy over the claim that nuclear fusion has been produced in a test tube.

  • S1994E11 Sir Walter's Journey

    • March 28, 1994
    • BBC Two

    In this episode, Horizon presents Professor Sir Walter Bodmer who searches for a new history of Britain, one that is written in their genes.

  • S1994E12 After the Flood

    • April 18, 1994
    • BBC Two

    This episode of Horizon investigates the flooding of the Mississippi river in the USA and a massive flood in Bangladesh.

  • S1994E13 Against The Clock

    • April 25, 1994
    • BBC Two

    Horizon explores how the demands of a 24-hour culture pushes people too far and the many accidents caused by fatigue.

  • S1994E14 Blueprints of Genocide

    • May 9, 1994
    • BBC Two

    This Horizon documentary investigates newly discovered documents in Moscow from 1945 about German concentration camps.

  • S1994E15 Ulcer Wars

    • May 16, 1994
    • BBC Two

    Horizon reports on a new discovery where stomach ulcers caused by Bacterium Helicobacter Pylori are treatable with antibiotics.

  • SPECIAL 0x19 30th Anniversary - The Far Side

    • May 23, 1994
    • BBC Two

    Horizon celebrates its 30th birthday by checking on some of the scientific predictions of last three decades.

  • S1994E16 Deaf Whale, Dead Whale

    • November 7, 1994
    • BBC Two

    Horizon investigates how mankind is now polluting the world's oceans with extreme noise caused by many sources such explosions and super tankers.

  • S1994E17 Whispers of Creation

    • November 14, 1994
    • BBC Two

    Horizon explores the creative process that caused ripples in the universe after the "Big Bang". Three teams of scientists attempt practical experiments to test abstract theories of cosmology.

  • S1994E18 The Predator

    • November 21, 1994
    • BBC Two

    Horizon presents a documentary on the Partula, a Polynesian tree snail.

  • S1994E19 Close Encounters

    • November 28, 1994
    • BBC Two

    Horizon investigates some alleged reports of alien abductions.

  • S1994E20 Orange Sherbet Kisses

    • December 12, 1994
    • BBC Two

    Horizon presents a documentary on Synaesthesia which is an unusual disorder of perception in which barriers between the senses dissolve.

  • S1994E21 Designer Wines

    • December 19, 1994
    • BBC Two

    Horizon brings you Reports from Europe, America, and Australia on how wine making differs and asks whether the traditional and troubled European wine industry will have to change its methods to compete with those wines from the new world.

Season 1995

  • S1995E01 Tibet - The Ice Mother

    • January 9, 1995
    • BBC Two

    Horizon presents a documentary on the ideas of Maureen Raymo's thesis on what triggered the last ice age.

  • S1995E02 Russia's Deep Secrets

    • January 16, 1995
    • BBC Two

    Horizon follows an expedition from Russia's most advanced oceanographic exploration ship on a mission to clean-up and prevent radioactive contamination of the ocean by one of Russia's sunken nuclear submarines.

  • S1995E03 Bones of Contention

    • January 23, 1995
    • BBC Two

    This episode of Horizon explores collections of the bones of thousands of Native American Indians in museums and universities across the United States.

  • S1995E04 Siamese Twins

    • January 30, 1995
    • BBC Two

    Horizon presents the story of a pair of Siamese twins and the surgery they underwent to try and separate them.

  • SPECIAL 0x20 Twice Born

    • February 14, 1995
    • BBC Two

    In this special episode, Horizon examines the use of foetal surgery for life saving operations.

  • S1995E05 Too Big Too Soon?

    • February 20, 1992
    • BBC Two

    Horizon investigates whether the human growth hormone is really the new wonder drug of the 21st century.

  • S1995E06 Farewell Fantastic Venus

    • February 27, 1995
    • BBC Two

    Horizon brings you the recent discovery of the real Venus as space probes, like the Magellan, shattered previous existing concerning its geology.

  • S1995E07 Exodus

    • March 6, 1995
    • BBC Two

    Horizon follows the a six month study of the world's first Environmental Impact Assessment team as they study the implications for the environment for major environmental events such as in Tanzania, when in April last year, nearly half a million people set up home in the refugee camp of Benaco.

  • S1995E08 The Betrayers

    • March 13, 1995
    • BBC Two

    Horizon has uncovered disturbing evidence of the fabrication of scientific research results.

  • S1995E09 Icon Earth

    • March 20, 1995
    • BBC Two

    This Horizon episode is about the Earth as an icon.

  • S1995E10 The I-Bomb

    • March 27, 1995
    • BBC Two

    Horizon presents this documentary on how national power is moving into the hands of those who control information.

  • S1995E11 Foetal Attraction

    • April 3, 1995
    • BBC Two

    This episode of Horizon reveals the results of research that could explain the major reasons for so many complications during pregnancy.

  • S1995E12 Cracks in the Crust

    • April 10, 1995
    • BBC Two

    Horizon tries to answer the question, "Has the dream of earthquake prediction finally been shattered?"

  • S1995E13 Hearing Voices

    • April 24, 1995
    • BBC Two

    Horizon explores the phenomenon often regarded as the first sign of madness - hearing voices. The report describes how the work of a leading Dutch professor of psychiatry, Marius Romme, has influenced psychologists and psychiatrists in Britain to rethink their current definitions of madness.

  • S1995E14 Liar

    • October 30, 1995
    • BBC Two

    Horizon presents a documentary that reveals the role played by deception in society and the effort by science to weed out the truth and the controversy over the accuracy of the polygraph test.

  • S1995E15 The Human Laboratory

    • November 6, 1995
    • BBC Two

    Horizon investigates the controversial research into some birth control contraceptives.

  • S1995E16 Nanotopia

    • November 13, 1995
    • BBC Two

    This episode of Horizon is about the future of micro-technology. In 1959, noted American physicist Richard Feynman offered a $1000 prize to anyone who could build an electronic motor no larger than half a millimetre on any side. He awarded the prize within eight months. Today, some scientists predict the imminent development of molecular computers the size of specks of dust. This program examines that and other technical possibilities, as it takes viewers on a guided tour of the cutting-edge laboratories of nanotechnology. There, scientists working on similarly astounding projects offer their predictions about future technological developments. Discussions include how nature provides scientific inspiration. Detailed scientific models and sophisticated computer graphics illustrate how these new micro-technologies will work.

  • S1995E17 Hunt for the Doomsday Asteroid (Update)

    • November 20, 1995
    • BBC Two

    Horizon presents an update on the story about asteroids colliding with Earth some day.

  • S1995E18 A Code in the Nose

    • November 27, 1995
    • BBC Two

    Horizon looks at an attempt to crack the mystery of smell by designing a molecule whose odour can be detected.

  • S1995E19 AIDS: Behind Closed Doors

    • December 4, 1995
    • BBC Two

    This report by Horizon brings you the latest research into the battle agains the AIDS virus.

  • S1995E20 The Runaway Mountain

    • December 11, 1995
    • BBC Two

    Horizon presents the story of the search for an explanation of how rock can flow like water.

Season 1996

  • S1996E01 The Butchers of Boxgrove

    • January 8, 1996
    • BBC Two

    Investigates the case of the "Boxgrove Man". Follows archaeologist Mark Roberts who tries to piece together the history of the first Englishman, from a shin bone nearly 500,000 years old, discovered in Boxgrove in Sussex.

  • S1996E02 Fermat's Last Theorem

    • January 15, 1996
    • BBC Two

    Tells the story of mathematician Andrew Wiles who has made it his life's work to solve the puzzle of Fermat's last theorem that has baffled minds for three centuries.

  • S1996E03 A Miracle for Cancer?

    • January 22, 1996
    • BBC Two

    Examines the latest research aimed at conquering cancer. Includes research into vaccines for prostate cancer and skin cancer.

  • S1996E04 Nature's Numbers

    • January 29, 1996
    • BBC Two

    Follows a group of biologists Conservation International who take a pragmatic approach to what species can be saved.They travel to the Bolivian rainforest to assess missing species.

  • S1996E05 The Gene Race

    • February 5, 1996
    • BBC Two

    Follows two teams of researchers, in Britain and USA as they use radically different genetic techniques in the race to find an effective treatment against cystic fibrosis.

  • S1996E06 Masters of the Ionosphere

    • February 12, 1996
    • BBC Two

    Recounts the history of scientific attempts from Marconi onwards to understand the atmospheric layer, known as the ionosphere. Discusses interest shown by the US Military in the region which has led to the establishment of HAARP (High Altitude Auroral Research Project) which will beam energy directly into the ionosphere.

  • S1996E07 Assault on the Male (revisited)

    • February 26, 1996
    • BBC Two

    Are changes in modern living increasing levels of oestrogen and threatening males of different species, from alligators to humans?

  • S1996E08 Death by Design

    • March 4, 1996
    • BBC Two

    In this Horizon documentary, we look at the notion that each cell in our body is programmed to die. Understanding this concept has major implications for research into disease.

  • S1996E09 The Planet Hunters

    • March 11, 1996
    • BBC Two

    Follows astronomers from Manchester, Switzerland and California as they search for planets with liquid water on them, the prerequisite for life

  • SPECIAL 0x21 Einstein: The Miracle Year

    • March 17, 1996
    • BBC Two

    First part of a two-part drama looking at the work and life of Albert Einstein. Mixes archival material with dramatised sequences. Looks at his turbulent private life and the six month period in which he worked out the size of atoms, the quantum theory of light and invented the Special Theory of Relativity.

  • SPECIAL 0x22 Einstein: Fame

    • March 18, 1996
    • BBC Two

    This is the second part of a two-part Horizon series on Albert Einstein looking at Einstein's life and work. This program deals with the break up of his first marriage, his second marriage to his cousin, and the completion of the General Theory of Relativity which replaced Newton's view on gravity.

  • S1996E10 Inside Chernobyl's Sarcophagus (Update)

    • March 25, 1996
    • BBC Two

    In this episode of Horizon, which is a follow-up to the 1991 documentary, we follow a group of soviet scientists on a suicide mission as they search for the missing nuclear fuel inside the remains of the nuclear reactor 4.

  • S1996E11 Fallout from Chernobyl

    • April 1, 1996
    • BBC Two

    Reports on the work by scientists Dr Keith Baverstock and Sir Dillwyn Williams to confirm that the outbreak of thyroid cancer in children in Belarus and the Ukraine was due to the Chernobyl disaster.

  • S1996E12 TV is Dead, Long Live TV

    • November 4, 1996
    • BBC Two

    In this documentary, Horizon compares the future of television with the years of experimentation before the first BBC broadcasts in 1936.

  • S1996E13 Aliens from Mars

    • November 11, 1996
    • BBC Two

    An investigation into claims that life once existed on Mars. NASA scientists and their critics discuss the fossils discovered in a small meteoric rock in Antarctica earlier in 1996.

  • SPECIAL 0x23 BSE: The Invisible Enemy

    • November 17, 1996
    • BBC Two

    First part of a two-part investigation into BSE. Looks into the scientific confusion and official bungling surrounding the problem, which allowed BSE to spread into the human population. Includes an interview with Sir Richard Southwood, Chairman of the first Government advisory committee, who reconsiders evidence they first weighed up in 1988.

  • SPECIAL 0x24 BSE: The Human Experiment

    • November 18, 1996
    • BBC Two

    This is part two of a two-part Horizon series on Bovine Spongiform Encephalopathy (BSE), more commonly known as "mad cow" disease, and how it is transmitted to humans, becoming CJD (Creutzfeldt Jakob disease), how many people are at risk, and what the chances are of finding a cure.

  • S1996E14 Living Death

    • November 25, 1996
    • BBC Two

    Looks at new treatments for patients in a persistent vegetative state. Focuses on the case of Geoffrey Wildsmith who was misdiagnosed as being PVS. He had awoken from his coma but was totally paralysed and unable to communicate. After two years he was transferred and it was found he could communicate by using a buzzer connected to a highly sensitive pressure-switch.

  • S1996E15 The Time Lords

    • December 2, 1996
    • BBC Two

    An investigation into claims by researchers that time travel is not only theoretically possible but is already happening.

  • SPECIAL 0x77 Molecules With Sunglasses (Update)

    • December 9, 1996
    • BBC Two

    An update on the earlier 1992 episode, and the continuing story of the Carbon 60 molecule.

  • S1996E16 Noah's Flood

    • December 16, 1996
    • BBC Two

    Follows the work of geologists Bill Ryan and Walter Pitman, who for twenty five years have been investigating evidence for the location of the biblical flood and Noah's Ark.

Season 1997

  • SPECIAL 0x25 Ice Mummies: The Ice Maiden

    • January 30, 1997
    • BBC Two

    Follows archeologist Natalya Polosmok as she journeys to the Altay Mountains in southern Siberia to search for traces of an ancient people known as the Pazyryk. * Polosmok and her team discover and unearth a wooden tomb surrounded by the frozen remains of six horses, uncovering a 2,400-year-old woman dubbed the Siberian Ice Maiden. * The Ice Maiden is buried alone, lying as if asleep, in a wood coffin with a headdress and a mirror. An afterlife meal, a yak horn vessel and a wooden table are also found outside the coffin. Archeologists record the Ice Maiden's height, and discover a hole in her skull and peat packed in her body. *They use radiocarbon dating, tree-ring chronology and biological testing to determine the age of the remains and time of death. *The body is excavated and taken to Moscow for preservation and facial reconstruction. Another mummy, and other skeletons, are discovered elsewhere. *The program concludes by raising the question of who has rights to the ancient graves.

  • SPECIAL 0x26 Ice Mummies: A Life in Ice

    • February 6, 1997
    • BBC Two

    In this second part of the Ice Mummies trilogy, attention turns to Ötzi, the Neolithic man plucked with an ice pick and some not inconsiderable brute force from an Alpine glacier. Once again, as with the Ice Maiden, an impressive set of relationships are on display in the vicinity of the leathery character and his bedraggled belongings. By far the most important man in Ötzi's life is Konrad Spindler, whose chance identification of the age of the mummy upon its discovery catapulted him to stardom and a life of analysis and scientific monitoring. Spindler is fiercely defensive of Ötzi, like Frankenstein and his monster, although the relationship is much less emotional than Natalia and her Ice Maiden. A bewildering array of more minor characters emerge during the course of the film, my particular favourite being a yodeling mountain dweller, included as a representation of how Ötzi has effected the local population. All varieties of archaeological life appear in this film, from Professors zur Nedden and Seidler, whose double act hints at the Muppets Stadtler and Waldorf, to an extra from This is Spinal Tap, Hanspeter Schrattenthaler, whose bare chest and rock star poses suggest he dearly wishes his copper axe were a guitar. Also worthy of mention is the lovable Harm Paulsen, who lives and works in a reconstruction of a Neolithic village and whose lilting Danish tones express some of the more human elements of the sad demise of Ötzi, such as the family he may have left behind, providing a stark contrast to the strictly 'scientific' views of Spindler.

  • SPECIAL 0x27 Ice Mummies: Frozen in Heaven

    • February 13, 1997
    • BBC Two

    This is the bizarre and fascinating story of the remains of Inca culture, frozen for posterity high in the mountains of the Andes. Evidence has emerged of sacrifice to the mountain gods, whose existence dominated the civilization over 500 years ago. The film traces the frozen bodies of children uncovered by archaeologists in South America, and follows an archaeological expedition to a high-altitude sacred site in search of ritual remains and another body. How did they come to be there? Why did they go to their deaths willingly? What was the religious framework that dictated their sacrifice to fierce gods?

  • S1997E01 Psychedelic Science

    • February 27, 1997
    • BBC Two

    Horizon reports on the resurgence in research on psychedelic drugs in the 1990's.

  • S1997E02 Fat Cats, Thin Mice

    • March 6, 1997
    • BBC Two

    In this documentary, Horizon investigates obesity in Britain, following a woman, Heather Osborne, who weighs 322 pounds. We watch her progress through a stomach stapling operation and explore reports on a so-called fat free fat and two new drugs which have been marketed as the ultimate cure for obesity.

  • S1997E03 Shipwreck

    • March 13, 1997
    • BBC Two

    Horizon follows the investigations into the origins of a 16th century shipwreck discovered off of the coast of the Channel Islands.

  • S1997E04 Genius of the Jet

    • March 20, 1997
    • BBC Two

    This episode of Horizon presents a profile of the inventor Sir Frank Whittle and his idea for the first jet engine which changed the nature of air travel.

  • S1997E05 Smallpox on Death Row

    • March 27, 1997
    • BBC Two

    In this episode, Horizon reports on the last lab samples of smallpox destined to be destroyed. But do we still have much to learn from this virus?

  • S1997E06 Silent Children, New Language

    • April 3, 1997
    • BBC Two

    In this episode, Horizon investigates an amazing new sign language developed solely by deaf children and explores if we copy language from what surrounds us.

  • S1997E07 Turned On by Danger

    • April 17, 1997
    • BBC Two

    Horizon reports on a radical new theory by Professor Polly Matzinger about the human body's immune system.

  • S1997E08 A Perfect Oil Spill

    • April 24, 1997
    • BBC Two

    Horizon investigates the real impact that oil pollution has on our environment during a 12 month study.

  • S1997E09 The Great Balloon Race

    • May 1, 1997
    • BBC Two

    Horizon reports on the technical and logistical struggles of teams trying for the first time to circumnavigate the earth by balloon.

  • SPECIAL 0x73 Computers Don't Bite, Inside the Internet

    • May 17, 1997
    • BBC Two

  • S1997E10 Destination Mars (Update)

    • July 4, 1997
    • BBC Two

    We follow the events leading up to the Pathfinder mission.

  • S1997E11 Crater of Death

    • September 11, 1997
    • BBC Two

    Horizon investigates the theory that a comet impact in the Gulf of Mexico was responsible for the mass extinction of the dinosaurs.

  • S1997E12 Mind Over Body

    • September 18, 1997
    • BBC Two

    Horizon reports on how mainstream science is now looking at whether the brain can affect the immune system.

  • S1997E13 Out of Asia

    • September 25, 1997
    • BBC Two

    In this episode, Horizon presents new findings about the dates for the arrival of people in Australia and the invention of art.

  • S1997E14 The Virus that Cures

    • October 9, 1997
    • BBC Two

    Horizon presents a documentary about scientists who now believe that viruses that can kill bacteria, known as bacteriophage, might win the fight against super-germs.

  • S1997E15 The Man Who Lost his Body

    • October 16, 1997
    • BBC Two

    Looks at Ian Waterman, who at 19 caught a virus that destroyed half of his nervous system and who, in spite of medical assertions that he would never walk, feed or move again, managed by sheer will-power to get back some mobility. Examines the question of how far the brain can over-ride disease or physical problems.

  • S1997E16 Dawn of the Clone Age

    • October 23, 1997
    • BBC Two

    This Horizon documentary is about how and why, a sheep named Dolly, became the first cloned copy of an adult mammal.

  • SPECIAL 0x28 Antarctica: The Ice Lives

    • October 30, 1997

    This is part one of a three-part Horizon special about the scientists and others who became explorers in the earth's final frontier, Antarctica.

  • SPECIAL 0x29 Antarctica: The Ice Forms

    • November 6, 1997

    This is part two of a three-part Horizon special about the scientists and others who became explorers in the earth's final frontier, Antarctica.

  • SPECIAL 0x30 Antarctica: The Ice Melts

    • November 13, 1997

    This is part three of a three-part Horizon special about the scientists and others who became explorers in the earth's final frontier, Antarctica.

Season 1998

  • SPECIAL 0x31 Crash

    • January 8, 1998
    • BBC Two

    This programme traces the lessons learned from a century of road fatalities. How have car makers learnt to predict the injuries their designs will inflict, and how have doctors learnt to patch up the damage to the frail human body?

  • S1998E01 Saddam's Secrets

    • February 19, 1998
    • BBC Two

    After the 1991 Gulf War, a UN Special Commission was set up to go into war-torn Iraq, seek out Saddam Hussein's weapons of mass destruction and destroy or disable them. This remarkable Horizon follows the tension of the inspectors' every move as they track down secret military bases, Scud missile launchers, the infamous super-gun barrels, decaying chemical weapons dumps, and the remains of the nuclear research establishment, cunningly hidden amongst debris and the innocent-looking rubble of post-war reconstruction. At each stage in the cat-and-mouse game with the Iraqi security forces, the UN team had to draw on cunning and courage to force their way into secret locations. Day by day, they recorded their progress on video, and charted the tensions of diplomatic stand-offs as the world was twice drawn close to another violent confrontation in the Gulf. The courage of the UN team, drawn from scientists from all over the world, is graphically revealed as they attempt to gauge the lethal nature of rusting canisters of poison gas, at Saddam's decaying chemical weapons store. After the immediate rush of successes, the inspectors' work became a steady process of attrition - grinding on against the stonewalling of their hosts. "The weapons programme is like layers of an onion. Every now and then, Saddam would allow us to peel one back, but there is always more underneath." But five years on, the inspectors had still not tracked down proof of the darkest of Saddam's secrets: his biological weapons programme. However, painstaking detective work revealed that huge quantities of the media needed for growing biological organisms had been imported, and Iraq finally admitted to having substantial biological weapons, which are cheaper and more simple to produce than nuclear and chemical weapons, yet have the same destructive power. Gradually the inspectors got close to the labs and animal testing stations where the lethal toxins had been produced. In addition to the mos

  • S1998E02 Dr Miller and the Islanders

    • February 26, 1998
    • BBC Two

    Horizon presents a documentary with Jonathan Miller who sets out for the Torres Strait, near Australia, to retrace the footsteps of the first British anthropological expedition 100 years ago. The expedition laid the foundations of modern anthropology's aims, ethos, and rules.

  • S1998E03 The Rainmaker

    • March 5, 1998
    • BBC Two

    Horizon presents the scientist, Graeme Mather, whose claims to be able to cause rainfall, are tested in Mexico with his reputation at stake.

  • S1998E04 Hopeful Monsters

    • March 19, 1998
    • BBC Two

    In this documentary, Horizon reports on the genetic research of biologist Mike Levine, whose discovery of a mutant fruit fly led to cures for illnesses as diverse as Parkinson's disease and skin cancer.

  • S1998E05 The Limits to Birth

    • March 26, 1998
    • BBC Two

    Horizon examines how much further we can and should go in our treatment of those born too soon in Britain.

  • SPECIAL 0x75 Darwin: The Legacy

    • March 29, 1998
    • BBC Two

  • S1998E06 Overkill

    • April 2, 1998
    • BBC Two

    Horizon presents the story from Celtic ritual and forensic science with startling conclusions that emerge about the subject and the nature of the evidence itself.

  • S1998E07 The Curse of Vesuvius

    • April 16, 1998
    • BBC Two

    In this story, Horizon looks at the communities that live directly below the shadow of the volcano called Mount Vesuvius.

  • S1998E08 Mir Mortals

    • April 23, 1998
    • BBC Two

    This documentary by Horizon presents the story of the four Russian men who orbited earth last year on board the ill-fated Mir space station.

  • S1998E09 The Computer that Ate Hollywood

    • April 30, 1998
    • BBC Two

    Horizon presents this documentary on how special effects have evolved during the last century of films.

  • S1998E10 Magic Bullet

    • May 7, 1998
    • BBC Two

    Horizon brings the story of a 40 year struggle to bring 'Antisense' into being and it's current trials with incurable cancer patients.

  • S1998E11 Gulf War Jigsaw

    • May 14, 1998
    • BBC Two

    Horizon examines claims that measures to protect American and NATO troops against chemical and biological weapons may have backfired.

  • S1998E12 Sexual Chemistry

    • September 10, 1998
    • BBC Two

    Horizon series on the emergence of the new sex drug Viagra for men.

  • S1998E13 Chimps on Death Row

    • October 1, 1998
    • BBC Two

    Horizon explores the history of experimentation with chimpanzees, our closest living relatives.

  • S1998E14 Dinosaurs in Your Garden

    • October 8, 1998
    • BBC Two

    Horizon tells the story of maverick scientist John Ostrom and his theory that birds are really just dinosaurs with feathers. Thirty years later, a revolution in palaeontology has proven him correct. Horizon looks at the compelling and recent evidence that shows how modern birds fine-tuned their unique design for flight. It also confirms that Velociraptor dinosaur is more closely related to the sparrow than it is to the crocodile.

  • S1998E15 Mosquito!

    • October 15, 1998
    • BBC Two

    Horizon investigates how science is fighting against the mosquito-spread disease Malaria.

  • S1998E16 The Life & Times of Life & Time

    • October 22, 1998
    • BBC Two

    Horizon follows the work of various scientists attempting to turn back the biological clock.

  • S1998E17 Thalidomide: A Necessary Evil

    • October 29, 1998
    • BBC Two

    Horizon presents an investigation into how Thalidomide is being used to treat leprosy, AIDS, and cancer with encouraging results.

  • S1998E18 Beyond a Joke

    • November 5, 1998
    • BBC Two

    In this program, Horizon reveals how laughter and play are crucial to the development of the brain, and how some scientists are recommending play as an alternative to drugs in helping to treat hyperactive youngsters.

Season 1999

  • SPECIAL 0x32 Longitude

    • January 4, 1999
    • BBC Two

    In this documentary special, Horizon explores how to solve the problem of sailors being unable to pin-point their exact east-west position on the globe.

  • SPECIAL 0x33 Fat Files: Born to Be Fat

    • January 7, 1999
    • BBC Two

    Horizon presents a three-part series focusing on weight-gain, dieting, and eating disorders. In this episode, there is scientific proof that we are not always in control of our appetites and weight, and introduces the hormone called Leptin.

  • SPECIAL 0x34 Fat Files: Fixing Fat

    • January 14, 1999
    • BBC Two

    Horizon presents a three-part series focusing on weight-gain, dieting, and eating disorders. In this episode, Horizon examines the shift away from invasive dieting methods to more natural weight-loss strategies, based on products already present in the food we eat.

  • SPECIAL 0x35 Fat Files: Living on Air

    • January 21, 1999
    • BBC Two

    Horizon presents a three-part series focusing on weight-gain, dieting, and eating disorders. In this episode, Horizon looks at the eating disorders called Anorexia and Bulimia.

  • S1999E01 From Here to Infinity

    • January 28, 1999
    • BBC Two

    Horizon follows the hunt for the most distant star ever seen.

  • S1999E02 Pandemic

    • February 4, 1999
    • BBC Two

    Horizon looks at the knowledge gained following the Spanish Flu Pandemic of 1918.

  • S1999E03 Elephants or Ivory

    • February 11, 1999
    • BBC Two

    In this episode, Horizon reports from Africa on the effect that rising elephant numbers are having on humans and the natural environment.

  • S1999E04 Electric Heart

    • February 18, 1999
    • BBC Two

    Horizon presents a documentary looking at the United States heart specialist, Michael DeBakey, and his work and research into making miniature pumps which could help make permanent artificial hearts in the future.

  • S1999E05 Sudden Death

    • February 25, 1999
    • BBC Two

    In this Horizon documentary, we present Alfred Steinschneider's theory on cot death where gaps in breathing could be responsible for the death of many infants.

  • S1999E06 New Star in Orbit

    • March 11, 1999
    • BBC Two

    In this report, Horizon explores the arguments for and against the building of the Space Station Freedom and will it ever justify it's huge cost.

  • S1999E07 New Asteroid Danger

    • March 18, 1999
    • BBC Two

    Horizon presents this documentary by scientists who have calculated that the Earth will be hit by a small asteroid within 50 years. How will this effect our planet?

  • S1999E08 Skeleton Key

    • March 25, 1999
    • BBC Two

    In this report, Horizon investigates the rare disease called Fibrodysplasia Ossificans Progressiva, which causes muscles and ligaments to turn into solid bone. This disease causes severe disfigurement and suffering, and often-time death. We look at the research by scientists trying to find out the causes of the disease and how to find a cure.

  • S1999E09 Wings of Angels

    • August 1, 1999
    • BBC Two

    Dramatisation of biologist David Lack's struggle to reconcile scientific evidence for evolution with his belief in God.

  • SPECIAL 0x36 Atlantis Uncovered

    • October 28, 1999
    • BBC Two

    This is part one of a two-part special Horizon series about Atlantis. In this episode, Horizon explores the mystery of whether Atlantis really did exist. Was there really, about 12,000 years ago, a fabulous city whose people had already evolved into a sophisticated civilization with culture and society, writing, astronomy, religion, monument-building, while everyone else was still living in the Stone Age?

  • SPECIAL 0x37 Atlantis Reborn

    • November 4, 1999
    • BBC Two

    This is part two of a two-part special Horizon series about Atlantis. In this episode, Horizon puts Graham Hancock's controversial theories about the past to the test, dissecting his evidence for a lost civilization.

  • S1999E10 Mistaken Identity

    • November 11, 1999
    • BBC Two

    Horizon presents a documentary about Multiple Personality Disorder (MPD) where in the 1980's, it suddenly became the talk of the town. Tens of thousands of Americans were diagnosed with an illness that was previously unheard of. A trigger for this sudden was the release of a film, "Sybil". Telling the dramatic story of a woman diagnosed with Multiple Personality Disorder, the film was shown across America making Sybil a household name.

  • S1999E11 Volcanoes of the Deep

    • November 18, 1999
    • BBC Two

    Could giant volcanic 'chimneys' on the ocean floor unlock the secret of how life began on Earth?

  • S1999E12 Anatomy of an Avalanche

    • November 25, 1999
    • BBC Two

    Horizon reports on a February 1999 catastrophic avalanche at Galtür in Austria that claimed 31 lives. Over the next six months, Horizon followed a team of scientists as they pieced together the extraordinary chain of events that led to the disaster. The scientists' investigations into the extreme forces of nature responsible for the tragedy are making people re-evaluate their calculations about avalanches.

  • S1999E13 The Midas Formula

    • December 2, 1999
    • BBC Two

    Horizon presents the extraordinary story of a beautiful mathematical formula that changed the world, the financial markets, and indeed capitalism itself. It could do the unthinkable - it took the risk out of playing the money-markets. To its inventors it brought the Nobel Prize for economics. To those who used it, it brought great wealth. But this glittering tale would end in tragedy.

Season 2000

  • SPECIAL 0x38 Life and Death in the 21st Century: Living Forever

    • January 4, 2000
    • BBC Two

    Will we find the magic formula that allows us to live forever in the 21st Century?

  • SPECIAL 0x39 Life and Death in the 21st Century: Future Plagues

    • January 5, 2000
    • BBC Two

    Ancient diseases we thought we had defeated are returning to haunt us, and plagues of new viruses and bacteria are now emerging.

  • SPECIAL 0x40 Life and Death in the 21st Century: Designer Babies

    • January 6, 2000
    • BBC Two

    Will we ever be able to hand-pick genes to manufacture our own tailor-made baby?

  • S2000E01 Breath of Life

    • January 12, 2000
    • BBC Two

    In this moving film Horizon follows the Loughran family in their fight to save the life of their daughter Sheila who suffers from cystic fibrosis. They lost their youngest daughter Ann to the disease in 1974 at the age of 15, and now as the health of their third daughter Sheila deteriorates, they must face the prospect of losing a second child. The current shortage of donor organs means that Sheila's only hope of survival is a rare and controversial operation that requires her two surviving siblings to undergo an arduous and potentially fatal operation. An X-ray of Shelia's lungs Cystic fibrosis (CF) is the most common genetic disease in this country and it is incurable. The lungs of people with cystic fibrosis become covered with a sticky mucus making them extremely susceptible to bacterial infection. Over time these infections badly scar the lungs, until eventually they stop functioning. The defective CF gene is harmless when only a single copy of the gene is inherited. However, both the Loughran parents carry the gene, giving any child they may have a 25% chance of being born with cystic fibrosis. In fact two of their four children were born with the condition. Horizon joins the family at a time when Sheila's health has deteriorated to such an extent that she requires oxygen 24 hours a day and has only months to live. Although on the waiting list for a donor lung, with 50% of patients dying while waiting to receive a transplant, Sheila's chances are not good. The family has become aware of a controversial new operation, pioneered in the UK by Professor Sir Magdi Yacoub at Harefield Hospital. The technique, known as Living Donor Lung Transplantation, would involve removing Sheila's diseased lungs and, in an extraordinary three-way operation, replacing them with a lobe from one of the lungs of each her two siblings. There have been six of these groundbreaking operations carried out in this country. However, only three patients have lived longer than a m

  • S2000E02 The Lost City of Nasca

    • January 20, 2000
    • BBC Two

    On a barren desert in South America lies one of the greatest archaeological puzzles in the world. Etched in the surface of the desert pampa sand are hundreds of straight lines, geometric shapes and pictures of animals and birds - and their patterns are only clearly visible from the air. They were built by a people called the Nasca - but why and how they created these wonders of the world has defied explanation. On the pampa, south of the Nasca Lines, archaeologists have now uncovered the lost city of the line-builders, Cahuachi. It was built nearly two thousand years ago and was mysteriously abandoned 500 years later. New discoveries at Cahuachi are at last beginning to give us insight into the Nasca people and to unravel the mystery of the Nasca Lines. Distorted heads The Lines were first spotted when commercial airlines began flying across the Peruvian desert in the 1920's. Passengers reported seeing 'primitive landing strips' on the ground below. No one knew who had built them or indeed why. Since their discovery, the Nasca Lines have inspired fantastic explanations. SpiderPerhaps most famously, the Austrian writer Erich von Danikken claimed that they were evidence that the earth had been visited by extra-terrestrials. The lines, he said, were runways for their spacecraft. Scientific study began in the 1940s with the arrival of a German mathematician and astronomer called Maria Reiche. She lived at Nazca until her death in 1998 and was known as the Lady of the Lines. Reiche believed that the lines were a sophisticated astronomical calendar. However, in 1965, astronomer Gerald Hawkins came to Nazca and used computers to check Reiche's theory. Hawkins could find no correlation between the lines and the stars. Giuseppe Orefici Italian archaeologist Giuseppe Orefici has been excavating the immense Cahuachi site for the last 17 years. Every year he brings a team of specialists to South America for three, intensive months of excavation. Horizon joined Orefi

  • S2000E03 The Diamond Makers

    • January 27, 2000
    • BBC Two

    There is something so special about diamonds, and they are so valuable, that people have always been prepared to go to the most extraordinary lengths to find them. But how would we feel about the uniqueness of diamonds if it was possible to make one in a laboratory, just like the real thing, down to the nearest atom? In the last few years there has been a scientific race to do exactly this: to manufacture the perfect gem diamond. Today the dream is close to becoming reality. Science has finally found a way to replicate in a few days something that nature has taken millions of years to produce - diamonds. These man-made diamonds are so close to the real thing, that they have the same atomic structure as natural diamonds. Even the most sophisticated machines are finding it hard to tell the difference. More importantly, these diamonds can be made and sold at a profit. Synthetic diamond press: This is the story of the race to produce man-made gem diamonds, from the first faltering steps 50 years ago, to today's 'New Alchemists' in Russia who are using the latest science and technology to produce perfect synthetic diamonds in an array of colours and sizes. And it is the story of how this leap in diamond-making technology has forced De Beers to develop ever-more sophisticated detection equipment, trying to spot the synthetics, while the physical distinction between real and man-made diamonds becomes more and more blurred. Today there are alarm bells ringing at De Beers in Johannesburg. De Beers controls the world diamond trade. By buying up most of the world's uncut diamonds, the company can regulate supply to select dealers, increasing it in good years and reducing it in bad, to keep prices high. Every year 3 billion pounds worth of rough diamonds are distributed around the world for cutting and polishing. The diamond market survives on public confidence. Already De Beers spends a fortune trying to detect synthetic gems, and teach wholesalers and graders what

  • S2000E04 Supervolcanoes

    • February 3, 2000
    • BBC Two

    Hidden deep beneath the Earth's surface lie one of the most destructive and yet least-understood natural phenomena in the world - supervolcanoes. Only a handful exist in the world but when one erupts it will be unlike any volcano we have ever witnessed. The explosion will be heard around the world. The sky will darken, black rain will fall, and the Earth will be plunged into the equivalent of a nuclear winter. Normal volcanoes are formed by a column of magma - molten rock - rising from deep within the Earth, erupting on the surface, and hardening in layers down the sides. This forms the familiar cone shaped mountain we associate with volcanoes. Supervolcanoes, however, begin life when magma rises from the mantle to create a boiling reservoir in the Earth's crust. This chamber increases to an enormous size, building up colossal pressure until it finally erupts. The last supervolcano to erupt was Toba 74,000 years ago in Sumatra. Ten thousand times bigger than Mt St Helens, it created a global catastrophe dramatically affecting life on Earth. Scientists know that another one is due - they just don't know when... or where. Yellowstone National Park: It is little known that lying underneath one of America's areas of outstanding natural beauty - Yellowstone Park - is one of the largest supervolcanoes in the world. Scientists have revealed that it has been on a regular eruption cycle of 600,000 years. The last eruption was 640,000 years ago... so the next is overdue. And the sleeping giant is breathing: volcanologists have been tracking the movement of magma under the park and have calculated that in parts of Yellowstone the ground has risen over seventy centimetres this century. Is this just the harmless movement of lava, flowing from one part of the reservoir to another? Or does it presage something much more sinister, a pressurised build-up of molten lava? Scientists have very few answers, but they do know that the impact of a Yellowstone eruption is ter

  • S2000E05 Miracle In Orbit

    • February 10, 2000
    • BBC Two

    When and how did space and time begin? The birth of the Universe is one of the biggest mysteries in astronomy. It has perplexed the best scientific minds for centuries. Decades before space travel was possible, astronomers dreamed of putting a telescope into orbit to try and answer these fundamental questions. It wasn't until the 1970s, when space flight had become a reality, that NASA resolved to build just such a space telescope. They named it Hubble. This was one of the most ambitious missions ever conceived. The technical challenges were enormous and it took 12 years to design and build. Travelling at seventeen thousand miles an hour, the Hubble Telescope would take pictures of the furthest reaches of space, transmitting them 400 miles back to Earth. In April 1990 the Hubble Space Telescope was launched. But just weeks later, disaster struck - the $2 billion telescope had a fatal flaw in its main mirror. This was not just a disaster for NASA; it was a national scandal. Hubble had to be saved; scientists and engineers began to search desperately for a solution to the problem. Plans for an adventurous repair mission began to take shape but it was two years before work could be carried out. It took astronauts five gruelling space-walks to carefully replace the instruments and patch up the telescope. But nobody knew if Hubble would be able to deliver on any of its original promises. Finally, the miracle happened. An unexpected avalanche of data from Hubble confirmed that the telescope was fixed. At last it began to solve the most fundamental puzzles of the Universe. Hubble has given us breathtaking images of the birth of stars; it has found black holes swallowing matter at the centre of galaxies; and last year the Hubble Telescope resolved the most fundamental question in astronomy - the age of the Universe. At last, half a century of scientific endeavour was rewarded. Horizon marks the 10th anniversary of the launch of the Hubble Space Telescope by

  • S2000E06 Complete Obsession - Body Dysmorphia

    • February 17, 2000
    • BBC Two

    What happens when a completely healthy person wants their leg amputated? Gregg is 55 and does not feel physically whole. This is despite the fact that he is physically healthy and able-bodied. Gregg believes he is incomplete with two legs and it has been his life-long struggle to get doctors to agree that removing one of his legs is the right thing for him. He isn't delusional. He knows what he is asking for and knows it is strange. But he cannot help his feelings. Gregg suffers from a rare but genuine psychological disorder - a form of body dysmorphia. And Gregg is not alone. Although Body Dysmorphia is rare, a worldwide network of sufferers is growing and demanding treatment. It affects both men and women and each person has a precise sense of which limb or limbs they want removed. Cases were cited a hundred years ago but still very little is known about the disorder. No one knows what causes it and very few psychiatrists have even encountered patients with the disorder. All that the patients seem to have in common is a strong memory of the first amputee they saw. They also report that the feelings started in childhood. However, the profession is now being forced to respond and devise methods of treatment. If not treated, it has been reported that suffers can go to extreme lengths to remove the unwanted limbs themselves. Some have even committed suicide. The difficulty with the condition is that the conventional methods for treating psychological problems, drugs and therapy, do not seem to be effective. The only treatment that does seem to be effective is surgery - actually removing the limb. The idea of using surgery is highly controversial and has divided the medical community. Some physicians consider it much too drastic a measure, possibly conflicting with their Hippocratic oath, not to cause harm. Others believe that it is the only way to free the patient of their obsession, 'curing' them of their psychological problem. At the present time, the

  • S2000E07 Is GM Safe?

    • March 9, 2000
    • BBC Two

    Some people see GM food as a ground-breaking scientific idea that could help to end world hunger and reduce global pollution. Others see it purely as 'Frankenstein foods' on 21st century menus, bringing health and environmental disasters. But what are the real scientific facts behind the newspaper headlines? Scientists can manipulate the genetic code of life to produce plants with new characteristics never seen in nature. They can isolate any one gene from any organism like an animal or bacterium, and insert it into a completely unrelated species like a plant. The possibilities are almost endless - Scientists can insert a gene from a bacterium into a grape to make it resistant to viruses. Or they can engineer maize that resists drought or potatoes that resist pests, so farmers can use less pesticides on their crops. For thousands of years we have been tampering with the genes of plants by traditional breeding. But there's a key difference here - with traditional plant breeding genes cross within the same species. But GM allows plant breeders to break the species barrier. And for critics this is fundamentally unnatural. The fear is that the proteins produced by these foreign genes might be dangerous. Either because the protein itself is poisonous or because it might alter the chemistry of the plant so that the plant becomes toxic. Detailed tests are performed on the plants to discover if they are substantially biologically and chemically the same as before modification and if they have become toxic or allergenic. Critics believe that no amount of testing can ensure that GM crops are completely safe. They believe that there is too much we don't understand about the complex genetic make-up of living organisms. And that even though there is little evidence so far, there may be a risk that genetic modification could cause effects so unexpected that they will be missed by all the tests biotech scientists carry out. In contrast genetic engineers claim their wo

  • S2000E08 Planet Hunters

    • March 16, 2000
    • BBC Two

    If extra-terrestrials do exist they must have a home. Horizon tells the story of the race to find out where in the Universe this might be. The answer, for scientists across the world, lies in the hunt for planets around distant stars. Stars which are trillions of miles away from our own solar system. But the history of the planet hunters is littered with failure. Centuries of searching had thrown up nothing. It was time for the new style planet hunters to step in. However, it is only in the last ten years that these scientists have had the technology to succeed. Even now looking for these distant planets is far from straightforward. The planets themselves are so faint that they cannot be seen, even by the most powerful telescopes ever built. Instead the astronomers must devise ingenious ways to search for clues to their presence. They examine stars just like our own Sun, across the galaxy, for any give-away characteristics that might indicate that they too have planets circling around them. A Swiss team finally struck gold in 1995 - convinced they'd detected a star that must have its own planet. Their discovery was the first of its kind but not the last. Other teams started to get lucky and suddenly it seemed like there were stars with planets everywhere. But the scientific community soon became restless. All they had done so far was detect the presence of alien planets - without seeing one, it was impossible to work out what the planet was like. If these planets really did exist it was time the scientists caught a glimpse of one of them. Only then would they be able to learn about the planet - its surface and its atmosphere. And only then would they know whether it could sustain life as we know it. Horizon follows the trials and tribulations of the planet hunters and shares in the triumph of the Scottish team who, just a few months ago, became the first to achieve the ultimate goal - to capture the image of an alien planet. It is orbiting another st

  • S2000E09 Constant Craving: The Science of Addiction

    • March 30, 2000
    • BBC Two

  • S2000E10 Moon Children

    • April 4, 2000
    • BBC Two

    A handful of children around the world cannot tolerate the sun. Any exposure leads rapidly to skin cancer. They must either play indoors during daylight or be protected from head to toe in UV-proof suits. These children suffer from a strange and rare genetically-inherited disease, xeroderma pigmentosum, or XP, which means that within seconds of the sun's rays touching their skin, they are in danger of developing skin cancer. Sun Children with XP are missing the crucial gene that repairs damage to DNA and so exposure to any carcinogen - UV light, or even cigarette smoke - is lethal. Unless, they are thoroughly protected they will die from cancer at an early age. There is no cure. But these tragic children may may lead the way to new and better cancer treatment. Through studying XP sufferers, scientists have reached a whole new understanding of the genetic basis of cancer. They can now predict why one in three people will succumb to cancer. Scientists have discovered how the body survives damage and repairs itself and as a result of this, developed a radical new approach to treating cancer. Horizon explores the story of one family, where 5 out of 7 siblings suffer from XP, and how they provide the final proof that genes and DNA repair are linked to cancer. It follows an intricate 40-year scientific detective story from the discovery of DNA, through the chance findings of the cells of the XP families that led to the unexpected insight that DNA is capable of repairing itself and that the failure of this repair system underlies most cancers. After years of research, this insight is finally beginning to revolutionise medicine. Now a new concept in cancer drug therapy is just beginning medical trials based on the knowledge gained from children suffering from XP.

  • SPECIAL 0x74 Inside the Internet

    • June 10, 2000
    • BBC Two

  • S2000E11 Mega-Tsunami: Wave of Destruction

    • October 12, 2000
    • BBC Two

    Scattered across the world’s oceans are a handful of rare geological time-bombs. Once unleashed they create an extraordinary phenomenon, a gigantic tidal wave, far bigger than any normal tsunami, able to cross oceans and ravage countries on the other side of the world. Only recently have scientists realised the next episode is likely to begin at the Canary Islands, off North Africa, where a wall of water will one day be created which will race across the entire Atlantic ocean at the speed of a jet airliner to devastate the east coast of the United States. America will have been struck by a mega-tsunami. Back in 1953 two geologists travelled to a remote bay in Alaska looking for oil. They gradually realised that in the past the bay had been struck by huge waves, and wondered what could have possibly caused them. Five years later, they got their answer. In 1958 there was a landslide, in which a towering cliff collapsed into the bay, creating a wave half a kilometre high, higher than any skyscraper on Earth. The true destructive potential of landslide-generated tsunami, which scientists named "Mega-tsunami", suddenly began to be appreciated. If a modest-sized landslide in Alaska could create a wave of this size, what havoc could a really huge landslide cause? Scientists now realise that the greatest danger comes from large volcanic islands, which are particularly prone to these massive landslides. Geologists began to look for evidence of past landslides on the sea bed, and what they saw astonished them. The sea floor around Hawaii, for instance, was covered with the remains of millions of years’ worth of ancient landslides, colossal in size. But huge landslides and the mega-tsunami that they cause are extremely rare - the last one happened 4,000 years ago on the island of Réunion. The growing concern is that the ideal conditions for just such a landslide - and consequent mega-tsunami - now exist on the island of La Palma in the Canaries. In 1949 the south

  • S2000E12 Conjoined Twins

    • October 19, 2000
    • BBC Two

    Conjoined twins are among the rarest of human beings. There are probably fewer than a dozen adult pairs living in the world today. Only a few hundred pairs of conjoined twins are born in the whole world each year - they appear about once in every 100,000 births - but more than half of them are stillborn, and one in three live for only a few days. Of those who survive, a very small number will be selected for separation surgery. But as there are few hospitals with the skills and experience to perform this kind of surgery, separation is still a very unusual event. The harrowing decisions which surgeons have to make when faced with conjoined twins have been highlighted by the recent case in Manchester, England. Separating conjoined twins is not only technically challenging; it can involves life and death decisions about whether one twin should be sacrificed in the hope of saving the other. But "sacrifice surgery" has a poor record of success, and the Manchester case is the latest round in an international debate about the value of separation operations. The confidence of the surgeons, who believe that separation is essential, is challenged by medical historian, Dr Alice Dreger of Michigan State University. She argues that twins themselves might take a different view - if they were ever given a chance to express it. Horizon interviews two pairs of adult conjoined twins - Lori and Reba Schappell in Pennsylvania and Masha and Dasha Krivoshlyapova in Moscow. Lori and Reba are joined at the head; Masha and Dasha are joined in their lower body. They say that they prefer their conjoined lives, despite the problems and challenges, rather than face the risks of separation surgery. Lori and Reba live independent lives in their own apartment in Pennsylvania; Lori enjoys working with computers and Reba is developing a career as a country singer. Masha and Dasha had a difficult childhood; they were subjected to medical experimentation when they were very young and hidde

  • S2000E13 The Lost World of Lake Vostok

    • October 26, 2000
    • BBC Two

    It sometimes seems as if our planet has no secrets left - but deep beneath the great Antarctic ice sheet scientists have made an astonishing discovery. They’ve found one of the largest lakes in the world. It’s very existence defies belief. Scientists are desperate to get into the lake because its extreme environment may be home to unique flora and fauna, never seen before, and NASA are excited by what it could teach us about extraterrestrial life. But 4 kilometres of ice stand between the lake and the surface, and breaking this seal without contaminating the most pristine body of water on the planet is possibly one of the greatest challenges science faces in the 21st century. In 1957 the Russians established a remote base in Antarctica - the Vostok station. It soon became a byword for hardship - dependent on an epic annual 1000km tractor journey from the coast for its supplies. The coldest temperature ever found on Earth (-89°C) was recorded here on the 21st July 1983. It’s an unlikely setting for a lake of liquid water. But in the 1970’s a British team used airborne radar to see beneath the ice, mapping the mountainous land buried by the Antarctic ice sheet. Flying near the Vostok base their radar trace suddenly went flat. They guessed that the flat trace could only be from water. It was the first evidence that the ice could be hiding a great secret. But 20 years passed before their suspicions were confirmed, when satellites finally revealed that there was an enormous lake under the Vostok base. It is one of the largest lakes in the world - at 10,000 square km it's about the extent of Lake Ontario, but about twice as deep (500m in places). The theory was that it could only exist because the ice acts like a giant insulating blanket, trapping enough of the earth’s heat to melt the very bottom of the ice sheet. Biologists believe that because the lake has been cut off from the rest of the planet for 15 million years or more - well before the human

  • S2000E14 Vanished: The Plane that Disappeared

    • November 2, 2000
    • BBC Two

    On August 2nd 1947, a British civilian version of the wartime Lancaster bomber took off from Buenos Aires airport on a scheduled flight to Santiago. There were 5 crew and 6 passengers on board the plane - named "Stardust". But Stardust never made it to Santiago. Instead it vanished when it was apparently just a few minutes from touchdown. One final strange Morse code radio message - "STENDEC" - was sent, but after that nothing more was heard from the plane. Despite a massive search of the Andes mountains no trace of the plane was ever found. For 53 years the families of those who disappeared have not known what happened to their loved ones. But earlier this year the plane suddenly reappeared on a glacier high up in the Andes, more than 50 km’s from the area where the plane was last reported. In February this year the Argentine army arranged a major expedition to visit the crash site beneath the massive Tupangato peak (6800m). Their aim was to bring back the human remains which had been found at the site, so that an attempt could be made at identifying them. The expedition also offered a unique opportunity for crash investigators to see if they could finally explain what happened to the ill-fated plane. Horizon gained exclusive access to this expedition, and now for the first time the full story of what happened to "Stardust" can be told. Why did the plane crash without warning? Why was it so far from its planned route across the mountains? What was the meaning of the last mysterious message - "STENDEC" - sent by the plane’s radio operator? Would it be possible more than 50 years after the crash to identify the remaining fragments of human remains that so graphically testified to the horrific destructive forces involved in the crash? And perhaps most mysteriously, why did the wreckage elude discovery for so long, despite regular mountaineering trips to Tupangato over the years? The expedition was joined at an army base in the Andes foothills. The thre

  • S2000E15 The Secret Treasures of Zeugma

    • November 9, 2000
    • BBC Two

    In the summer of 2000, one of the great frontier cities of the Roman Empire, the city of Zeugma, all but disappeared from the face of the Earth under the flood waters of a dam. In a bid to modernise, the Turkish government has embarked on one of the most ambitious engineering projects in the world, building a series of dams on the Euphrates over the past twenty years. Almost every dam threatens ancient remains that lie below in one of the most archaeologically rich regions of the world. The completion of the Birecik dam, featured in this film, has flooded the valley where Zeugma is buried. The city on the flat plain has entirely disappeared and the waters have now risen to cover 30% of the city on the hillside. Horizon tells the story of the archaeologists' fifth and final visit, struggling to save what they could before the dam waters rose. It witnesses the uncovering of some of the most beautiful examples of Roman art ever found. The team’s discoveries at Zeugma caused an international outcry and further excavations were hurriedly put together. Since 1995, French archaeologists Pierre Leriche and Catherine Abadie-Reynal have taken up the challenge to save what they can from the city before the dam is finished. The archaeologists have two main tasks - to uncover the history of this desperately under-excavated region of Turkey and to remove what treasures they could from the site before they were lost forever. On this, their final excavation, they had to work against the clock: they only had a permit to dig for six weeks Zeugma was founded by one of Alexander the Great’s generals, Seleucia Nicator, and prospered under later Roman rule. It became one of the major cities of the Roman eastern frontier with a garrison of over 6,000 soldiers. The city’s bridge across the Euphrates made it one of the most critical trading cities in the region, on the silk routes to the East. The archaeologists know that the city contains vital clues to the history of the re

  • S2000E16 The Valley of Life or Death

    • November 16, 2000
    • BBC Two

    At the heart of the AIDS epidemic in Africa, there is a deadly mystery that has puzzled scientists for years. There are groups of people who are four times less likely to get HIV than other people, sometimes living just yards away, across a single valley - people with apparently similar behaviour and lifestyle. Scientists realised that if they could understand why these people are so much less vulnerable to the HIV virus, it might lead to an answer that could save millions of lives. And after 15 years of detective work it turns out there may be a remarkably simple answer: the high risk areas for HIV coincide with tribes who are uncircumcised. In Africa, it seems a man is much more likely to get HIV if he is uncircumcised. In Kaoma, Western Zambia, a young boy is on his way to the sacred Mukondaa - the tribal circumcision ground. Around him the tribal elders are gathered, dressed in their ceremonial garb, and vivid masks. But the young boy himself is an outsider, not from this tribe, and none of his relatives or ancestors have ever been circumcised. In fact, his parents are only prepared to break the taboo of their own tribe because they believe that circumcision could save his life by protecting him from AIDS. At first sight this belief seems like the kind of superstition to which desperate people often turn in times of plague. But now there is scientific evidence that suggests these people could well be right. There have now been twenty seven statistical studies that show a big difference in HIV infection between circumcised and uncircumcised men. For example, among the uncircumcised people of Kisumu in Western Kenya, a man is three times as likely to get AIDS than his circumcised neighbours. Among truck drivers in Mombasa the difference is four-fold. Horizon travels across Africa, tracing the work of scientists who have unearthed the statistical data behind this correlation. At the same time microbiologists have been battling to understand the complex and

  • S2000E17 Extreme Dinosaurs

    • November 23, 2000
    • BBC Two

    Amazing new discoveries in South America are revolutionising what we thought we knew about the dinosaur world. It now seems that South America was home to both the largest meat-eater - so new it's still without a name - and the largest herbivore - the enormous long-necked Argentinasaurus. And what's more, these dinosaurs lived at the same time in the same place. So it's possible that like in a science fiction movie, in this prehistoric world these two giants of their kind fought each other in a spectacular clash of the Titans. Horizon follows the scientists to Argentina as they unearth one of these giants - a brand new species of dinosaur; the biggest carnivore ever discovered. Not yet named, this new creature is even bigger than T. rex, the so-called 'king' of the carnivores. The new giant South American predator had a skull bigger than a man that was full of serrated, knife-like teeth and long powerful jaw muscles. They could dissect their prey with almost surgical precision. But even this formidable killing machine couldn't alone have taken on the massive long-neck, Argentinasaurus, which was the height of a five-storey building. It must have hunted in a pack. The problem is, the mega-meat-eaters have always been assumed to have been solitary creatures. The evidence shows that they lived and hunted alone. If they weren't pack hunters, then they would never have attacked Argentinasaurus. So it looked like the idea of a mighty battle between these two giants was simply science fiction. But extraordinary new clues are proving otherwise. Palaeontologist Phil Currie had long suspected that the giant carnivores might indeed have hunted in packs and he set out to find the proof. Only now after many years' work have Currie and his team unearthed the clues that are beginning to convince other palaeontologists that the huge carnivorous dinosaurs hunted in groups. With the help of his colleague Rodolfo Coria, Currie has discovered not one but two fossil bone-beds s

  • S2000E18 Supermassive Black Holes

    • November 30, 2000
    • BBC Two

    In June 2000, astronomers made an extraordinary discovery. One that promises to solve one of the biggest problems in cosmology - how and why galaxies are created. Incredibly, the answer involves the most weird, destructive and terrifying objects in the Universe - supermassive black holes. Scientists are beginning to believe that these forces of pure destruction actually help trigger the birth of galaxies and therefore are at the heart of the creation of stars, planets and all life. Supermassive black holes are so extraordinary that until recently, many people doubted that they existed at all. The idea of giant black holes the size of the Solar System seemed more like science fiction that reality - such monsters would be so powerful that they could destroy the very fabric of the Universe. But in the last five years a series of discoveries has changed our understanding of supermassive black holes and galaxies forever. Using the powerful Hubble Space Telescope, scientists have been scanning nearby galaxies, searching for these giant black holes. It's a difficult job - by their very nature black holes swallow light - so can never be seen. So what scientists have been looking for is the effect of their massive gravity, hurling stars around them at immense speed. What they've found is more extraordinary than anyone could ever have imagined; not just evidence that these vast destructive monsters exist… but so far they're in every single galaxy toward which they have turned their telescopes. These giant agents of destruction appear to be common throughout the Universe. Scientists now think supermassive black holes are a fundamental part of what a galaxy actually is. Lurking at the heart of every single galaxy is a giant black hole of apocalyptic proportions - and that includes our own galaxy, the Milky Way. Astronomer Andrea Ghez has been studying the heart of the Milky Way for the last five years. What she's discovered is irrefutable evidence for a giant black h

  • S2000E19 The Boy who was Turned into a Girl

    • December 7, 2000
    • BBC Two

    In 1965 in the Canadian town of Winnipeg, Janet Reimer gave birth to twin boys - Bruce and Brian. Six months later a bungled circumcision left Bruce without a penis. Based on a radical new theory of gender development the decision was taken to raise Bruce as a girl. In 1967 Bruce became Brenda and for the next three decades this case would be at the heart of one of the most controversial theories in the history of science. The man behind this work was world-renowned psychologist Dr John Money. In the 1950s Dr Money developed a theory that revolutionised our understanding of gender. Money believed that what he called our 'gender identity' - what makes us think, feel and behave as boys or girls - is not fully formed by the time of birth. While we may have some innate sense of being a boy or a girl, for up to two years after birth, our brains are, in effect, malleable and we can be taught to grow up as either a boy or girl by how we are raised - by the toys we are given, the guidance we receive from adults and the clothes we are given to wear. This became known as the 'theory of gender neutrality'. Dr Money had reached this conclusion by working with a rare group of individuals born with ambiguous genitals - people known as intersexuals or hermaphrodites. Dr Money studied groups of intersex children, and concluded that these children could be brought up as either boys or girls regardless of their genetic or physical sex. The legacy of Dr Money's work was a revolution in the treatment of 'intersex'. From the 1950s to the present day many intersex children born with a tiny penis are reassigned as female even if they are actually genetically male. But not everyone agreed with Dr Money's theories. Since the 1950s a small group of scientists including Dr Milton Diamond have questioned John Money's work. Diamond believed that our sex is already defined in our brains before we are born. He was convinced that the power of our genes and hormones was so strong that no a

  • S2000E20 Atlantis Reborn Again

    • December 14, 2000
    • BBC Two

    Horizon puts Graham Hancock's controversial theories about the past to the test, dissecting his evidence for a lost civilisation. Although scientists believe they have categorically disproved the myth of Atlantis, the idea is more popular now than ever before. The latest exponent of the theory of a single lost source for all civilisation, is Graham Hancock. Although he doesn't call it Atlantis, his compelling ideas about a sophisticated society destroyed in a flood 12,000 years ago seem to be based on a reworking of the original Atlantis myth, whose survivors brought culture, religion, monument-building and civilisation to the rest of the world. Graham Hancock offers various pieces of evidence to support his theory. He claims that the mysterious lost civilisation left its mark in ancient monuments, which he calculates were built to mirror certain constellations of stars. His hugely popular ideas have attracted such a wide audience that they stand to replace the conventional view of the past, which is based on scientific evidence that the civilisations of the ancient world were developed independently, by different peoples, on different continents. Horizon journeys across the world to examine Hancock's evidence for a lost civilisation and puts his theory to the test. Using modern astronomy, Hancock and his followers claim they can find messages from a lost society in the patterns of some of the greatest ancient monuments of the world. One colleague in particular, the author Robert Bauval, believes that the Giza pyramids in Egypt were built to mirror the stars of Orion's belt. Hancock also believes that the great temples of Angkor Wat in Cambodia mirror the constellation Draco as it would have appeared 12,000 years ago - at a time when the world was in the Stone Age. They see this as evidence that a great civilisation existed at this time, and later conveyed its wisdom to the peoples of the ancient world, before disappearing without trace from the archa

Season 2001

  • SPECIAL 0x41 Life on Mars

    • January 11, 2001
    • BBC Two

    If there's life on Mars, it would be one of the most important discoveries of all time. It would mean life on Earth was not some special unique event - it would mean there's likely to be life throughout the Universe. In the first of two special programmes on Mars, Horizon explores how the search for Martians is now hotting up, and why many scientists are becoming more and more convinced that life may have arisen on Mars, and that there may even be something living there now. Today, Mars is a frozen desert - the average temperature is -70ºC. But long ago Mars was very different. The first clues came from Mariner 9, which sent back fuzzy images of the surface of Mars, revealing volcanoes, canyons and meandering valleys that looked like ancient rivers. Rivers form from rain water run-off, rain comes from clouds, and clouds mean an atmosphere. If there had been rivers on Mars, it meant the planet had once been warm and wet, like the Earth - the perfect conditions for life to evolve. For thirty years scientists like Mike Carr have been poring over more and more detailed images of Mars, trying to piece together the planet's history. When the latest probe, Mars Global Surveyor, was launched three years ago, everyone hoped its high resolution electronic cameras would settle the debate about the ancient rivers. Thousands of close up images were beamed back, revealing sections of the valleys in fantastic detail, but none of them were any use. Over the billions of years, the valleys had all been eroded and filled with sand. It was impossible to say how they had been formed. Then finally, the Mars Global Surveyor team noticed a tiny feature in one image, which convinced them that billions of years ago there were rivers and lakes on Mars. But did these warm, wet conditions last long enough for life to evolve? An unusual lake in Turkey has convinced Scottish geologist, Mike Russell, that Martian lakes were once teeming with primitive bacteria. So if life did evolve, is

  • SPECIAL 0x42 Destination Mars

    • January 18, 2001
    • BBC Two

    Tantalising new evidence has emerged that life could exist on Mars. But to find out for sure humans will have to journey to this dry, frozen planet.

  • S2001E01 The Mystery of the Miami Circle

    • January 25, 2001
    • BBC Two

    Builders in Miami, Florida unearth a ring of holes. The State then pays $27million to preserve either a Native American village or remnants of a 1950s sewerage system.

  • S2001E02 The Missing Link

    • February 1, 2001
    • BBC Two

    A trail from Greenland to Britain via Latvia offers new evidence into how evolution could have seen aquatic life form legs and walk.

  • S2001E03 Killer Algae

    • February 8, 2001
    • BBC Two

    A tropical seaweed that escaped from an aquarium is endangering sea life in the Mediterranean and has gone on to infect the California coast.

  • S2001E04 Ecstasy and Agony

    • February 15, 2001
    • BBC Two

    Tim Lawrence was an all-action stuntman until hit by Parkinson's Disease. Horizon follows his hopes of a more normal lifestyle using Ecstasy - a class A illegal drug.

  • S2001E05 Snowball Earth

    • February 22, 2001
    • BBC Two

    The controversial theory that for millions of years the Earth was plunged into catastrophe - entirely smothered in ice up to one kilometre thick.

  • S2001E06 Taming the Problem Child

    • March 6, 2001
    • BBC Two

    Two disruptive children are followed through a controversial treatment regime.

  • SPECIAL 0x43 What Sank the Kursk?

    • August 8, 2001
    • BBC Two

    In August 2000, the Russian submarine, the Kursk, sank with the loss of 118 lives. It was a tragedy which shocked the world. But to many the tragedy remains incomprehensible, for the Kursk had been built to be unsinkable. How could this submarine have foundered? For a week after the tragedy the world watched in horror, as divers struggled to reach the crew trapped inside the Kursk. But the rescue efforts were in vain - all the sailors on board had perished. One overriding question dominated the aftermath of the disaster: what had caused the submarine to sink? As theories and counter-theories have multiplied, this mystery has been mired in confusion and acrimony. The Russians eventually claimed an American spy submarine had collided with the Kursk, causing her to sink - a claim the Americans flatly deny. But the Russian suspicions were based on logic. During the naval exercises there had indeed been two American submarines out in the Barents Sea, spying on the Russian weaponry and tactics. There is also a long history of collisions between US and Russian submarines in the Barents Sea. And above all, the Russians believed they had found overwhelming evidence showing the Kursk sank as a result of a collision with an American submarine. Satellite photographs and underwater footage all seemed to point to the Russian suspicions being correct. However, new scientific evidence suggests that the Russians were wrong. With access to the very latest scientific research, Horizon tells the story of the alternative theory that shows that it probably wasn't a collision, and may point to the true cause of the tragedy. The disaster left a series of geophysical fingerprints. Through a detailed forensic detective story, seismologists have now been able to establish that the Kursk sank because of an explosion, not a collision. But what had exploded? Horizon follows torpedo designers and chemists as they try to track down the precise cause of the explosion. The scientists'

  • S2001E07 The Mystery of the Persian Mummy

    • September 20, 2001
    • BBC Two

    In November 2000, the international press reported an amazing find: a mummy, which was claimed to be that of an ancient Persian princess, over 2,600 years old. She was encased in a carved stone coffin, inside a wooden sarcophagus and was wearing an exquisite golden crown and mask. Her cloth-bound body was dressed with golden artefacts, with an inscription on her breastplate that read, "I am the daughter of the great King Xerxes, I am Rhodugune." All the internal organs had been taken out of her body, in the same way that the ancient Egyptians mummified their dead. It was the find of a lifetime, one of the most magnificent ancient treasures ever to be unearthed in the area. When the curator from the Karachi National Museum, Dr Asma Ibrahim, began her investigations into the mummy, a different story began to emerge. Horizon follows the story as forensic experts all over the globe analyse the mummy and her magnificent trappings and discover that she is an elaborate fake with a terrible secret. The mummy was found in a house in the desert region of Pakistan during a police raid, after a tip-off that it was to be illegally sold on the antiquities black market for $20m, and smuggled out of Pakistan. The Persian princess was immediately hailed as a major archaeological discovery. In fact, no Persian mummy had ever been found before, let alone a royal mummy. Mummification to preserve bodies had always been thought to be unique to the ancient Egyptians. However, there were some strange puzzles about this beautiful princess. The inscriptions on the mummy's breastplate had some grammatical errors. And there were peculiarities in the way she had been mummified. Several detailed operations common to Egyptian mummifications had been omitted. So it began to look like the mummy was not the princess she was supposed to be; perhaps she was a more ordinary ancient mummy dressed up to be a Persian princess by forgers trying to increase her value. As scientists inves

  • S2001E08 The Ape that Took Over the World

    • October 4, 2001
    • BBC Two

    In 2001, scientists announced an amazing discovery: the oldest skull of a human ancestor ever found. The 3 million year old fossil was remarkably complete, and unlike any previous fossil find. Its discovery - by a team led by Meave Leakey of the famous Leakey fossil-hunting family - has revolutionised our understanding of how humans evolved. The great mystery of our evolution is how an ape could have evolved into the extraordinary creature that is a human being. There has never been another animal like us on the planet. And yet ten million years ago there was no sign that humans would take over the world. Instead the Earth was dominated by the apes. More than 50 different species of ape roamed the world - ten million years ago Earth really was the planet of the apes. Three million years later, most had vanished. In their place came something clearly related to the apes, but also completely different: human beings! For years scientists searched for the first key characteristic which had allowed us to make the huge leap from ape to amazing human. At first they thought the development of our big brains was decisive. They even found the fossil that seemed to prove it, until along came the famous three million year old fossilised skeleton Lucy. This quashed the big brain theory, because here was a human ancestor which clearly walked on two legs, just as we do, but had the tiny brain of an ape. It seemed that the development of walking on two legs (bipedalism) was the first key human characteristic, the thing that set us on the road to becoming human. Lucy soon became even more important. She seemed to defy the laws of evolution. Normally a major evolutionary adaptation like walking on two legs is followed by what scientists call an adaptive radiation. Many related species quickly evolve from an initial evolutionary innovation. It gives a very bushy evolutionary family tree, with many different but related species. Scientists knew that the human branch of the fa

  • S2001E09 Life Blood

    • October 11, 2001
    • BBC Two

    Matthew Farrow was born with a rare and fatal blood disease, Fanconi's anaemia. His family and doctors thought he was going to die. Instead, aged just five, he became the first person in the world to be given a radical new treatment that few believed would work. It saved his life. The treatment was remarkably simple. A small quantity of blood taken from a newborn baby's umbilical cord and placenta was infused into him. Thanks to this cord blood, Matthew Farrow is now a healthy teenager and the treatment he helped to pioneer is giving hope to hundreds of critically ill children around the world. Cord blood contains a large number of blood stem cells, the mysterious factory cells that make all the red and white blood cells our body needs. Stem cells can rebuild a sick child's blood system in just a few weeks, by producing healthy new blood cells. Until Matthew's case, babies' umbilical cords and placentas were just thrown away at birth. Established medical thought said the only source of blood stem cells was the bone marrow and the only treatment for children with advanced blood cancers was a bone marrow transplant. One in three affected children cannot find a suitable bone marrow donor, and there was a desperate need for an alternative. The first doctors to suggest cord blood as an answer were dismissed as dreamers. But pioneering work over the last twenty years, mainly in America, has shown that the tiny quantity of blood contained in a newborn's umbilical cord and placenta is rich in the crucial stem cells. It is now being used to help to treat a broad range of blood cancers and serious genetic blood diseases. However, even its advocates admit that cord blood is no miracle cure. Cord blood is a significant medical breakthrough, but it cannot save everyone who is treated with it. This powerful and moving film follows patients and their doctors as they go through this arduous new treatment. Not all patients survive the transplant. However, for som

  • S2001E10 The Death Star

    • October 18, 2001
    • BBC Two

    Out in deepest space lurks a force of almost unimaginable power. Explosions of extraordinary violence, are blasting through the Universe every day. If one ever struck our Solar System it would destroy our Sun and all the planets. For years no one could work out what was causing these awesome explosions. Now scientists think they have identified the culprit. It's the most extreme object ever found in the Universe; they have christened it a 'hypernova'.

  • S2001E11 Cloning the First Human

    • October 25, 2001
    • BBC Two

    Doctors Panayiotis Zavos and Severino Antinori claim they are ready to embark on the greatest human experiment of our age. They say they will attempt to clone a human being before the year is out. Most people think the objections to this are ethical - human cloning would create many moral dilemmas. There is another question that few ever ask: is the science actually ready yet for cloning healthy humans? Horizon follows the latest research, which has led many scientists to believe that Zavos and Antinori's plans to clone the first human could end in tragedy. The programme also meets couples like Matthew and Desiree Racquer who think cloning offers them the only way to raise a child who is truly their own. For decades, cloning remained within the realms of science fiction. The idea that instead of combining a sperm and an egg, a new human could be made from a single cell taken from an adult, seemed completely absurd. But that all changed in February 1997, when the Roslin Institute introduced the world to Dolly the sheep - the first animal cloned from an adult. Ever since Dolly, scientists have been continuing to experiment with cloning animals. So far, they have succeeded in cloning sheep, cattle, pigs, goats and mice, fuelling the belief that humans could be next. But even Dolly's creator, Professor Ian Wilmut, is concerned that beneath the veneer of success lies a disturbing reality. Most cloning attempts on animals so far have resulted in failed implantation or abnormal foetuses. Of the animals born alive, some soon die of catastrophic organ failure. Others appear to be healthy for weeks or even months, then die suddenly, sometimes from bizarre new illnesses which do not occur in nature. Years of painstaking work are only now revealing some vital clues to what is going wrong. Horizon talks to the scientists who have uncovered new evidence, suggesting that the process of cloning itself causes subtle errors in the way genes function. These random errors m

Season 2002

  • S2002E01 Helike - The Real Atlantis

    • January 10, 2002
    • BBC Two

    On a winter night in 373 BC, the classical Greek city of Helike was destroyed by a massive earthquake and tidal wave. The entire city and all its inhabitants were lost beneath the sea. What has bewitched archaeologists about Helike is that it was engulfed just when ancient Greece was reaching its height; when the philosophy and art that inspired the western world for thousands of years were invented. Its destruction was one of the most appalling tragedies of the classical world and most probably the reality behind the myth of Atlantis. But now, unlike Atlantis, a team of archaeologists may have found Helike - a lost city from the heyday of Greek civilisation. If it is as well preserved as everyone hopes, Helike could be a time capsule from this crucial time in human development. For centuries there had been just no sign of it. All archaeologists had to guide them were obscure and often contradictory ancient texts. So, despite numerous expeditions trawling the waters off the coast of Greece and vast amounts of money and technology thrown at the problem, no one could find anything except two small coins, unearthed over a hundred years ago. Then, in 1988 Dora Katsonopoulou and Steven Soter took up the challenge. Dora had grown up with the legend from childhood and was determined to find the archaeological treasure on her doorstep. Together they went back to basics and re-examined the ancient texts. These said that Helike had sunk into a poros, which everyone had taken to mean Gulf of Corinthe. But Dora thought that a poros could also be an inland lagoon. If she was right, the lost city which had inspired Atlantis might not be under the sea, as everyone thought, but somewhere inland. Studying the geology of the region, earthquake expert Iain Stewart argues that a large earthquake could well cause an inland lagoon. Small recent earthquakes in the region have caused ground liquefaction - a terrifying phenomenon where the ground literally turns to water beneath

  • S2002E02 Volcano Hell

    • January 17, 2002
    • BBC Two

    It began with a ghastly tragedy. In 1985 the massive Colombian volcano Nevado del Ruiz erupted, melting a glacier and sending a vast landslide of mud down on the people asleep in the town of Armero below. Twenty thousand died. In the aftermath science was set a challenge: to make sure such a catastrophe never happened again, by finding a way of accurately predicting when a volcano will erupt. Now, at last, it seems that one scientist may have met that challenge. Anyone can tell when a volcano becomes active. You can see it and you can smell it. But a volcano can be active for years without erupting. For those living nearby, there is no way they will abandon their homes and livelihoods just because of a few rumblings. The only way to persuade them to seek safety is to predict an eruption almost to the day, leaving just enough time for an evacuation. Scientists threw themselves at the problem, but there just seemed to be no way to make sense of the violent forces at work inside a volcano. Then along came Bernard Chouet. He is different from other volcanologists. His training lay in the complex equations and theories of physics, and he believed the answer had to lie in analysing the mysterious patterns drawn by seismographs. These measure the tremors caused by active volcanoes. Previous attempts to use these tremors to predict eruptions had proved fruitless. No one could find any correlation between the squiggles on the graph paper and the timing of eruptions. So Chouet locked himself away for five years and then emerged claiming he had found the answer. The key, he said, were seismic signals called long period events. These strange shapes had baffled volcanologists for years. Chouet said they were made by molten magma resonating - that is coming under pressure - inside the volcano. The more long period events there were, then the nearer the volcano was to exploding. Chouet could use the long period events to predict an eruption to within days. But

  • S2002E03 Fatbusters

    • January 24, 2002
    • BBC Two

    There is a new epidemic sweeping the world. It's been silently growing over the last few decades - only now is it reaching dramatic proportions. If current trends continue, more than one quarter of British adults will have this disease by the year 2010. This new epidemic is obesity. Scientists have recently made significant discoveries, which could lead to a drug treatment for obesity. In the meantime, until the drugs are developed, what should we do to keep off the pounds? One thing is certain. Willpower alone won't stop the epidemic of obesity; however, new research suggests there may be an easier way to fight the flab than joining the gym. Meet the Padded Lilies, a troupe of obese water ballet dancers who insist it is impossible to change our natural weight. They say they are born with a slow metabolic rate that has made them fat. But scientists now know that fat people actually have a faster metabolic rate. The Padded Lilies' suspicion that there is something wrong with their biology may well be true... but not in the way they thought. In 1994, research into a fat mouse was the starting point for a revolution in the science of obesity. The obese mouse was missing a hormone called leptin, which turns off the feelings of hunger. Wall Street went mad and the patent for leptin was purchased by a biotechnology company for millions of dollars. It seemed that at last a quick fix for obesity had been found. However, researchers quickly discovered that fat people had lots of leptin. There seemed to be no connection between the fat mice and obesity in humans. Then four years ago at Cambridge University, a young researcher, examined the blood of two young children who were so obese they could hardly walk and were confined to wheelchairs. She discovered these children, just like the mouse, didn't have the genetic information to make leptin and so could not suppress their appetites. She had for the first time ever identified human beings who were obese because

  • S2002E04 The Lost Pyramids of Caral

    • January 31, 2002
    • BBC Two

    The magnificent ancient city of pyramids at Caral in Peru hit the headlines in 2001. The site is a thousand years older than the earliest known civilisation in the Americas and, at 2,627 BC, is as old as the pyramids of Egypt. Many now believe it is the fabled missing link of archaeology - a 'mother city'. If so, then these extraordinary findings could finally answer one of the great questions of archaeology: why did humans become civilised? For over a century, archaeologists have been searching for what they call a mother city. Civilisation began in only six areas of the world: Egypt, Mesopotamia, India, China, Peru and Central America. In each of these regions people moved from small family units to build cities of thousands of people. They crossed the historic divide, one of the great moments in human history. Why? To find the answer archaeologists needed to find a mother city - the first stage of city-building. They couldn't find one anywhere. Everywhere this first stage seemed destroyed or built over. And so, instead, scientists developed a number of theories. Some said it was because of the development of trade, others that it was irrigation. Some even today believe it was all because of aliens. Gradually an uneasy consensus emerged. The key force common to all civilisations was warfare. The theory was that only the fear of war could motivate people to give up the simple life and form complex societies. To prove it, archaeologists still had to find a city from that very first stage of civilisation. If it showed signs of warfare, then the theory had to be true. When archaeologist Ruth Shady discovered her 5,000 year old city of pyramids in the Peruvian desert, all eyes were on the New World. Ruth's extraordinary city, known as Caral, is so much older than anything else in South America that it is a clear candidate to be the mother city. It also is in pristine condition. Nothing has been built on it at all. Instead laid out before the world is an

  • S2002E05 Death of the Iceman

    • February 7, 2002
    • BBC Two

    In September 1991 two hikers made a sensational discovery - a frozen body high in the mountains, near the border between Austria and Italy. It turned out to be 5,300 years old, the oldest frozen mummy ever found. Named Ötzi the Iceman after the Ötztal area where he was found, he became a worldwide sensation. The body was taken to Austria where scientists soon got to work on him. They analysed his bone density to find out how old he was (in his 40s, an advanced age for the time) and examined his wonderfully preserved belongings. The cause of his death remained a mystery. Now archaeologists are being joined by forensic scientists to investigate this unique case and new research has revealed a shocking answer. The investigation into Ötzi's death started at the scene of discovery. By examining photos which had been taken at the site, Austrian archaeologist Konrad Spindler worked out the layout. He was particularly intrigued by the position of the Iceman's copper axe, which was found propped up against a rock. He believed that this must have been placed in that position by Ötzi himself which meant that everything at the site had been preserved in the position it was when Ötzi died. His body was slumped face down on the ground, his cap lay nearby just as if it had fallen from his head. Scientists also wanted to know when he died so they examined the ice in which he'd been found. This contained pollen that they could identify as coming from autumn-flowering plants, so they concluded that Ötzi had died in the autumn. Together, this evidence implied that the Iceman might have got caught in a storm and died of hypothermia. Then the scientists looked inside the iceman using X-rays and CAT (Computer Assisted Tomography) scans. They saw what looked like unhealed rib fractures. So Spindler came up with what he called his disaster theory. He believed Ötzi was a shepherd who, one autumn, was returning to his home village with his animals. When he got there he be

  • S2002E06 Parallel Universes

    • February 14, 2002
    • BBC Two

    Everything you're about to read here seems impossible and insane, beyond science fiction. Yet it's all true. Scientists now believe there may really be a parallel universe - in fact, there may be an infinite number of parallel universes, and we just happen to live in one of them. These other universes contain space, time and strange forms of exotic matter. Some of them may even contain you, in a slightly different form. Astonishingly, scientists believe that these parallel universes exist less than one millimetre away from us. In fact, our gravity is just a weak signal leaking out of another universe into ours. For years parallel universes were a staple of the Twilight Zone. Science fiction writers loved to speculate on the possible other universes which might exist. In one, they said, Elvis Presley might still be alive or in another the British Empire might still be going strong. Serious scientists dismissed all this speculation as absurd. But now it seems the speculation wasn't absurd enough. Parallel universes really do exist and they are much stranger than even the science fiction writers dared to imagine. It all started when superstring theory, hyperspace and dark matter made physicists realise that the three dimensions we thought described the Universe weren't enough. There are actually 11 dimensions. By the time they had finished they'd come to the conclusion that our Universe is just one bubble among an infinite number of membranous bubbles which ripple as they wobble through the eleventh dimension. Now imagine what might happen if two such bubble universes touched. Neil Turok from Cambridge, Burt Ovrut from the University of Pennsylvania and Paul Steinhardt from Princeton believe that has happened. The result? A very big bang indeed and a new universe was born - our Universe. The idea has shocked the scientific community; it turns the conventional Big Bang theory on its head. It may well be that the Big Bang wasn't really the beginning of every

  • S2002E07 The Dinosaur that Fooled the World

    • February 21, 2002
    • BBC Two

    In the mid 1800s, when Charles Darwin published his theory of evolution, one species of animal remained a mystery; where did birds fit on his evolutionary tree? Several years later his friend and colleague, Thomas Henry Huxley, came up with an answer. Huxley had recently examined a new fossil from southern Germany called Archaeopteryx which was causing considerable excitement in palaeontological circles. There were clear signs of feathers and it was obvious this was the earliest fossil evidence of a bird ever found. Huxley noticed something else as well. To him it looked as though the skeleton bore a striking similarity to that of a family of meat eating dinosaurs known as therapods. In the 1860s, on the basis of this observation, he announced a new theory; birds must have evolved from dinosaurs. The theory ignited what was to become one of the biggest controversies in palaeontology. Could Huxley possibly be right; how could a large, land-bound creature like a dinosaur have ever evolved into something as light and sleek as a bird? Many questioned the accuracy of Huxley's observations and ever since there has been a search for further fossil evidence to confirm the theory; a transitional animal which would incontrovertibly show how, in one creature, birds had evolved from dinosaurs. It has become one of the big missing links in palaeontology. In Spring 1999, at the Tucson Gem and Fossil Fair in Arizona, an American collector came across a new Chinese fossil which seemed to be just this transitional animal. It had the head and upper body of a bird but the tail of a dinosaur. It was called Archaeoraptor or 'ancient hunter'. Throughout the 1990s a number of important fossils emerged from China showing an apparent relationship between dinosaurs and birds. Practically all come from a region in the north of the country called Liaoning, one of the richest fossil areas in the world. Here, 130 million years ago, volcanic eruptions buried a wetland once teeming in wil

  • S2002E08 The Fall of the World Trade Center

    • March 7, 2002
    • BBC Two

    The World Trade Center was built on revolutionary design principles. It turned conventional architectural and structural techniques on their head. Built from a thin web of steel, its design was efficient, cost-effective and would inspire a new wave in modern building techniques. The result was two towers that were both lightweight and strong. When they were completed they were the tallest in the world. They were also milestones of architecture for another reason. The two towers were the first skyscrapers explicitly designed to withstand being hit by a jet plane. Although they had considered an aircraft impact, the designers of the World Trade towers had not anticipated the effect of an aeroplane's fuel load. British-born survivor Paul Neal tells how he smelt jet fuel rushing through the lift shafts close to his desk. "I recognised it because I'm a private pilot. I recall smelling it and instantly dismissed it as being illogical because it didn't have any place in the World Trade Center." Survivor, Bill Forney, recalls the instant that the 767 aircraft hit the North Tower one floor above where he was sitting. "The building started shaking. It lurched back and forth. It was the first time that I had truly thought that I might die. After a terrifying six to ten movements back and forth it was over and it was done." The World Trade Center had ultra-lightweight floors, and used the latest fireproof 'drywall' to protect the stairwells and lift shafts. Much of this internal structure seems to have been vaporized when the planes crashed, exposing the underlying steel to the intense heat of multiple fires. Brian Clark was one of the only four survivors from both towers to escape from above where the planes hit. He describess clambering over the shattered walls to break through a smoke-filled stairwell to get out. "Drywall had been blown off and was lying up against the stair railing." he says, "We had to shovel it aside." Another survivor, window cleaner Jan

  • S2002E09 Archimedes' Secret

    • March 14, 2002
    • BBC Two

    This is the story of a book that could have changed the history of the World. To the untrained eye, it is nothing more than a small and unassuming Byzantine prayer book, yet it sold at Christies for over $2m. For faintly visible beneath the prayers on its pages are other, unique, writings - words that have been lost for nearly two thousand years. The text is the only record of work by one of the world's greatest minds - the ancient Greek, Archimedes - a mathematical genius centuries ahead of his time. Hidden for a millennium in a middle eastern library, it has been written over, broken up, painted on, cut up and re-glued. But in the nick of time scientists have saved the precious, fragile document, and for the first time it is revealing just how revolutionary Archimedes' ideas were. If it had been available to scholars during the Renaissance, we might have reached the Moon over a hundred years ago. The trail begins in the tenth century, when a scribe made a unique copy of the most important mathematics that Archimedes ever developed. For 200 years the document survived, but the mathematics in it was so complex that no one paid it any attention. So when one day a monk was looking for some new parchment - an expensive commodity at the time - to write a new prayer book, the answer seemed obvious. He used the Archimedes manuscript. He washed the Greek text off the pages, cut them in half, rebound them, and turned the Archimedes manuscript into an everyday prayer book. As he piously wrote out his prayers, he had no idea of the genius he was obliterating. Several hundred years later, the Renaissance was under way. Scientists were beginning to grapple with new concepts, working out how mathematics could be used to explain the World around them. Little did they know that many of the problems they were just encountering Archimedes had already solved more than a thousand years before. So, tragically, they had to do that research all over again, setting back the devel

  • S2002E10 The Mystery of the Jurassic

    • March 28, 2002
    • BBC Two

    For years scientists have been trying to find the mysterious evolutionary master key responsible for transforming the dinosaurs into world-beaters. In the early Jurassic, 200 million years ago, they were a relatively small group of primitive creatures. By the late Jurassic, 50 million years later, they had become the magnificent array of carnivores and giant plant eaters that would dominate the planet for millions of years. In between lies the mysterious period of the middle Jurassic in which all these changes must have happened. But what were they? What was it that transformed the dinosaurs? Was there some terrible mass extinction? Had there been an amazing change in the environment? All this was speculation and theory. How and where would evidence come to light? Fossils from the middle Jurassic are incredibly rare. All anyone had to go on were a few small outcrops of rock dotted around the world. Then a treasure trove of fossils emerged from the midst of an Argentinian wilderness in the 1990s; thousands of square miles of mid-Jurassic rocks. On their first season in the field, palaeontologist Oliver Rauhut and his team unearthed two giant meat-eating dinosaurs and six huge long-necked dinosaurs. And there was much more: early mammals, crocodiles, fish and even plant life. They had uncovered a complete mid-Jurassic eco-system, a wonderful snapshot of life from this dark age of dinosaurs. "It's as if someone has unearthed a holy grail of dinosaur palaeontology," says British geologist, Dr Phil Manning. Oliver Rauhut describes the site as, "an extraordinary window on the mid-Jurassic." Above all, the hope is that this site may contain all the information they need to find the mysterious evolutionary forces that have eluded palaeontologists for so long. Already they've been able to test out many of their theories and draw some exciting conclusions. For instance, one theory about what might have happened in the mid-Jurassic clearly does not seem to be supp

  • S2002E11 Killer Lakes

    • April 4, 2002
    • BBC Two

    When Mount Nyiragongo erupted in the Democratic Republic of Congo in January 2002 it seemed like a disaster. Molten lava plunged down the hillside and poured into nearby Lake Kivu. Many died, and much of the city of Goma was destroyed. In fact, the local people were lucky. Had the eruption spread to one of the many volcanic faults under Lake Kivu, it could have unleashed one of the most terrifying of all natural phenomena - lake overturn. The phenomenon of lake overturn first struck in 1984 at Lake Monoun, in Cameroon. 37 people mysteriously died, suddenly and silently. A bizarre array of theories sprang up - secret testing of chemical weapons, a massacre by unknown terrorists; none really made sense. The scientists who looked into the disaster believed it had to be something to do with the lake itself, but they could not be absolutely sure. In 1986, before research into the Monoun disaster was made public, it all happened again. The tragedy of Lake Nyos, also in Cameroon, made headlines around the world when almost 1,800 people sleeping in houses around the lake suffocated in their sleep. The team of scientists that went to investigate concluded that carbon dioxide, trapped at the bottom of the lake, had suddenly risen to the surface, killing everything within 25km. They called their theory lake overturn. Eventually the scientists came to realise that carbon dioxide springs underground were pumping carbon dioxide into the lake and that the whole tragedy would be repeated if nothing was done. They installed an extraordinary fountain in the middle of the lake to help the gas disperse. Even so, the level of carbon dioxide in the waters remains a concern. The Nyos disaster promoted a survey of deep lakes in Africa and Indonesia to see where else lake overturn could happen. All seem to be safe, except one - Lake Kivu, in Rwanda. Lake Kivu is one of the largest and deepest lakes in Africa and two million people live around its shore. It is also filling up wit

  • S2002E12 The A6 Murder

    • May 16, 2002
    • BBC Two

    On 4 April 1962, James Hanratty was led from the condemned cell in Bedford Prison to the gallows. On the way he protested his innocence, as he had done every day since he had been convicted of murder. At 8am, the noose was fitted round Hanratty's neck and he was hanged, launching one of the longest and most bitter appeal campaigns in the history of British justice. Hanratty's supporters believe that he was wrongfully convicted, the victim of dubious police evidence. The police maintain Hanratty was a vicious killer - and say they now have DNA evidence to prove it. After years of doubt, it appears that modern science holds the key to a 40 year old case. It all began when Michael Gregsten drove to the countryside with his lover, Valerie Storie. They had just parked in a quiet lay-by when a gunman got in the back of their car and demanded money. Several hours later Gregsten was dead and Storie had been raped and, with several bullets inside her, left for dead on the side of the A6 road. Amazingly, she survived to tell the tale. The nation was horrified by the savagery of the crime, and a massive manhunt was launched. Police began to close in on a small-time crook, 25 year old James Hanratty. Valerie Storie identified him as the killer, as did two other eye witnesses, who said they saw Hanratty driving Gregsten's car shortly before it was abandoned. Hanratty, a convicted thief, was unable to provide a credible alibi for what he was doing at the time of the murder, and in court, came across as arrogant, devious and unreliable. After a six week trial, and largely on the basis of this crucial eye witness evidence, Hanratty was found guilty and sentenced to death. As time went on, Hanratty campaigners became more and more convinced that the case against him was flawed. They claim that police withheld vital evidence from the defence, that Valerie Storie's identification of Hanratty was dubious, and the other eye witnesses may not even have seen Hanratty at all. The

  • S2002E13 The England Patient

    • May 23, 2002
    • BBC Two

    The England football manager, Sven-Goran Eriksson, believes that modern soccer matches are not won on the pitch, but inside people's minds. This film examines not just how Eriksson got inside his players' brains, but how he is now starting nothing short of a revolution in English football thinking. Eriksson's plan, devised with sports psychologist Dr Willi Railo, has two critical elements. These are to banish the crippling effects of the fear of failure from the minds of the England players, and to encourage them to train mentally as well as physically to reach the highest levels of performance - dubbed playing in 'the zone'. Neurologists and psychologists from some of Britain's most prestigious universities believe anxiety and the fear of failure can make top professionals turn in performances like amateurs, and that Eriksson and Railo have a way to help the England team endure the pressure. Their view is that England's football past has been dogged by fear of failure. Piling on pressure and relying on patriotism to get people to perform doesn't work when - at heart - it's just 11 footballers taking on 11. If players accept they could lose (and that it's alright when they do) then they'll be less nervous and less prone to what's called 'choking'. When sportspeople choke, familiar instincts are overwhelmed by pressure. Monitoring shows that people use different parts of the brain to perform actions which they are learning and those which are second nature. If the brain reverts to its learning mode, motor skills are constrained and that 89th minute penalty kick goes right over the bar. Visualisation is fundamental to making sure people play to their best at all times. As far the brain is concerned, there's little difference between practising a movement and just thinking through it. By thinking in advance just how intense the pressure could be, Eriksson's players can avoid choking when critical moments arise. Eriksson has a further psychological ace

  • S2002E14 Freak Wave

    • November 14, 2002
    • BBC Two

    The world's oceans claim on average one ship a week, often in mysterious circumstances. With little evidence to go on, investigators usually point at human error or poor maintenance but an alarming series of disappearances and near-sinkings, including world-class vessels with unblemished track records, has prompted the search for a more sinister cause and renewed belief in a maritime myth: the wall of water. Waves the height of an office block. Waves twice as large as any that ships are designed to ride over. These are not tsunamis or tidal waves, but huge breaking walls of water that come out of the blue. Suspicions these were fact not fiction were roused in 1978, by the cargo ship München. She was a state-of-the-art cargo ship. The December storms predicted when she set out to cross the Atlantic did not concern her German crew. The voyage was perfectly routine until at 3am on 12 December she sent out a garbled mayday message from the mid-Atlantic. Rescue attempts began immediately with over a hundred ships combing the ocean.

  • S2002E15 Stone Age Columbus

    • November 21, 2002
    • BBC Two

    Who were the first people in North America? From where did they come? How did they arrive? The prehistory of the Americas has been widely studied. Over 70 years a consensus became so established that dissenters felt uneasy challenging it. Yet in 2001, genetics, anthropology and a few shards of flint combined to overturn the accepted facts and to push back one of the greatest technological changes that the Americas have ever seen by over five millennia. The accepted version of the first Americans starts with a flint spearhead unearthed at Clovis, New Mexico, in 1933. Dated by the mammoth skeleton it lay beside to 11,500 years ago, it was distinctive because it had two faces, where flakes had been knapped away from a core flint. The find sparked a wave of similar reports, all dating from around the same period. There seemed to be nothing human before Clovis. Whoever those incomers were around 9,500BC, they appeared to have had a clean start. And the Clovis point was their icon - across 48 states.

  • S2002E16 Homeopathy: The Test

    • November 26, 2002
    • BBC Two

    Homoeopathy was pioneered over 200 years ago. Practitioners and patients are convinced it has the power to heal. Today, some of the most famous and influential people in the world, including pop stars, politicians, footballers and even Prince Charles, all use homoeopathic remedies. Yet according to traditional science, they are wasting their money. Sceptic James Randi is so convinced that homoeopathy will not work, that he has offered $1m to anyone who can provide convincing evidence of its effects. For the first time in the programme's history, Horizon conducts its own scientific experiment, to try and win his money. If they succeed, they will not only be $1m richer - they will also force scientists to rethink some of their fundamental beliefs. The basic principle of homoeopathy is that like cures like: that an ailment can be cured by small quantities of substances which produce the same symptoms. For example, it is believed that onions, which produce streaming, itchy eyes, can be used to relieve the symptoms of hay fever.

  • S2002E17 The Day the Earth Nearly Died

    • December 5, 2002
    • BBC Two

    250 million years ago, long before dinosaurs roamed the Earth, the land and oceans teemed with life. This was the Permian, a golden era of biodiversity that was about to come to a crashing end. Within just a few thousand years, 95% of the lifeforms on the planet would be wiped out, in the biggest mass extinction Earth has ever known. What natural disaster could kill on such a massive scale? It is only in recent years that evidence has begun to emerge from rocks in Antarctica, Siberia and Greenland. The demise of the dinosaurs, 65 million years ago (at the so-called K/T boundary), was as nothing compared to the Permian mass extinction. The K/T event killed off 60% of life on Earth; the Permian event 95%. Geological data to explain the destruction have been hard to find, simply because the rocks are so old and therefore subject to all kinds of erosion processes. It seems plausible that some kind of catastrophic environmental change must have made life untenable across vast swathes of the planet. In the early 1990s, the hunt for evidence headed for a region of Siberia known as the Traps. Today it's a sub-Arctic wilderness but 250 million years ago, over 200,000km² of it was a blazing torrent of lava. The Siberian Traps were experiencing a 'flood basalt eruption', the biggest volcanic effect on Earth. Instead of isolated volcanoes spewing out lava, the crust split and curtains of lava were released. And the Siberian flood eruption lasted for millions of years. Could volcanic activity over such a long time alter the climate enough to kill off 95% of life on Earth?

  • S2002E18 The Secret of El Dorado

    • December 19, 2002
    • BBC Two

    In 1542, the Spanish Conquistador, Francisco de Orellana ventured along the Rio Negro, one of the Amazon Basin's great rivers. Hunting a hidden city of gold, his expedition found a network of farms, villages and even huge walled cities. At least that is what he told an eager audience on his return to Spain. The prospect of gold drew others to explore the region, but none could find the people of whom the first Conquistadors had spoken. The missionaries who followed a century later reported finding just isolated tribes of hunter-gatherers. Orellana's story seemed to be no more than a fanciful myth. When scientists came to weigh up the credibility of Orellana's words, they reached the same conclusion. As productive as the rainforest may appear, the soil it stands in is unsuited to farming. It is established belief that all early civilisations have agriculture at their hearts. Any major population centre will have connections with a system of intensive agriculture. If a soil cannot support crops sufficient to feed a large number of people, then that serves as an effective cap on the population in that area. Even modern chemicals and techniques have failed to generate significant food from Amazonian soil in a sustainable way . The thought that indigenous people could have survived in any number - let alone prospered - was dismissed by most scientists. Scientific consensus was sure that the original Amazonians lived in small semi-nomadic bands and that Orellana must have lied.

Season 2003

  • S2003E01 The Mystery Of Easter Island

    • January 9, 2003
    • BBC Two

    On Easter Day 1722, Dutch explorers landed on Easter Island. A civilisation isolated by 4,000km of Pacific Ocean was about to meet the outside world for the first time in centuries. The strangers were about to find something very strange themselves - an island dotted with hundreds of huge stone statues and a society that was not as primitive as they expected. The first meeting was an immense clash of cultures. (Bloody too: the sailors killed ten natives within minutes of landing.) Where had the Islanders originally come from? Why and how had they built the figures? Modern science is piecing together the story, but it is far too late for the Easter Islanders themselves. They were virtually wiped out by a series of disasters - natural and man made - that brought a population of 12,000 down to just 111 in a few centuries. The Island's inhabitants today all have Chilean roots, making solving the mysteries even harder. There is no one to ask about the first people of Easter Island. Although fragmentary legends have been passed down, only science can hope to explain the rise and fall of this unusual civilisation.

  • S2003E02 Living Nightmare

    • January 16, 2003
    • BBC Two

    Sleeping is an essential part of everyone's life yet it remains little understood is barely understood. You might think it's a relaxing recharge but in fact your brain is working harder at times overnight than when you're conscious in the day. Fresh insight into why and how we sleep has come from studying people with sleep disorders, especially sufferers of narcolepsy. The condition means that people fall asleep many times a day, completely out of the blue. A less known symptom is paralysing attacks, that can cause narcoleptics to fall to the ground - unable to move - several times a day. If a way can be found to ease their symptoms, it could open the way to helping any of us to control our sleep patterns and perhaps even to go without rest while staying alert. Gaynor Carr has been nodding off routinely since the age of seven. Her narcolepsy has made holding down a job impossible and made her question the idea of ever having children. Gary Beattie used to work in construction, until he fell asleep 7m up a ladder. He not only loses consciousness, his body becomes paralysed in a so-called cataleptic attack. Both of them say that showing emotion sparks the paralysing attacks and that has forced them to avoid laughing and crying. Bill Baird worked in finance but describes his stockbroking days as a race. The emotion of closing a deal would bring on a fit; he had constantly to hope he could get a client's signature before his almost inevitable collapse. His sleep is restless, with vivid nightmares when he is able to hear his surroundings while seeing terrifying hallucinations.

  • S2003E03 Averting Armageddon

    • January 23, 2003
    • BBC Two

    The Earth is under constant bombardment. Each year, many fragments of debris hit our planet. Fortunately for us, most are so small that they burn up harmlessly in the atmosphere. However, there are hundreds of larger asteroids orbiting near the Earth. Many scientists now believe that one of these hit the Earth 65 million years ago, killing the dinosaurs, along with 90% of all life on the planet. What is more, it is only a matter of time before the Earth is hit again. Experts warn that nuclear weapons might not destroy an approaching asteroid. But Jay Meloch thinks he can use the power of the Sun to nudge an asteroid away from the Earth. Until recently, no one took the asteroid threat very seriously. Yet the evidence that we are in danger is on our own doorstep. We need only look at the cratered surface of the Moon to realise that it has been pounded by impacts throughout its history.

  • S2003E04 Dirty Bomb

    • January 30, 2003
    • BBC Two

    A dirty bomb is a radiological weapon but unlike a nuclear bomb, its purpose is to contaminate rather than destroy. It uses normal explosives to disperse radioactive materials in the local environment, creating a hazard to health that could last for years unless cleaned up. The relative ease of making such a bomb means it is a potent terrorist weapon but Horizon's investigation shows that the risk to health from most such devices need not be great. It also underlines the need for governments to act to secure radioactive sources from falling into criminal hands. Horizon deliberately avoids outlining the production process in any detail. Horizon publishes the results of specially commissioned research, modelling two possible dirty bomb scenarios: attacks on either London or Washington DC. The main conclusion is that the health risks from a dirty bomb explosion are localised to people who are close to the incident or are in contact with the contamination. Although the modelled attack scenarios could have wide-ranging economic repercussions, the majority of the population of either capital city would have only a negligible increase in their risk of developing cancer.

  • S2003E05 Sexual Chemistry (Update)

    • February 13, 2003
    • BBC Two

    The drug Viagra revolutionised the treatment of sexual dysfunction in men on its launch five years ago. An accidental discovery, the tablet that gave impotent men the chance once more to have natural erections became the fastest selling pill in history and has earned its manufacturer, Pfizer, over $6bn. The search is now on for a similar drug that could help women. Research is revealing that female sexuality is more complex than expected. For women suffering from a loss of desire many scientists believe that drugs acting on the brain may be the way forward. A pioneering Scottish study may have identified just such a drug and begun testing it scientifically. An erection is achieved by filling the erectile tissue of the penis with blood. Blood vessels widen to allow blood in and then constrict to maintain the pressure. Male impotence was long thought to be a psychiatric effect, a result of stress, anxiety or depression. Medical advice was that there was not much to be done. Some patients refused to take this message on board.

  • S2003E06 The Day We Learned To Think

    • February 20, 2003
    • BBC Two

    Understanding of humans' earliest past often comes from studying fossils. They tell us much of what we know about the people who lived before us. There is one thing fossils cannot tell us; at what point did we stop living day-to-day and start to think symbolically, to represent ideas about our environment and how we could change it? At a dig in South Africa the discovery of a small piece of ochre pigment, 70,000 years old, has raised some very interesting questions. Anatomically modern humans (Homo sapiens) emerged in Africa roughly 100,000 years ago. We know from fossil evidence that Homo sapiens replaced other hominids around them and moved out of Africa into Asia and the Middle East, reaching Europe 40,000 years ago. Prof Richard Klein believes art is a landmark in human evolution. Unquestionable art that's widespread and common suggests you're dealing with people just like us. No other animals, after all, are able to define a painting as anything other than a collection of colours and shapes. This ability is unique to humans.

  • S2003E07 Trial and Error

    • February 27, 2003
    • BBC Two

    It was the simplest idea but one with enormous potential. If a gene is defective in the human body, just replace it with one that works properly. Gene therapy would mean that genetic disorders would become a thing of the past. Cancer would be cured, as would cystic fibrosis and hundreds of other genetic illnesses. Scientists were justifiably excited about the idea but, this enthusiasm that would end up costing one young man his life. Jesse Gelsinger was born with a liver disorder, a rare condition called ornithine transcarbamylase (OTC) deficiency that stops the liver metabolising ammonia. People with the disease can suffer from brain damage or coma. At its most extreme the illness is fatal. Jesse was lucky, able to lead a fairly normal life although he had a daily cocktail of drugs to control his condition. Jesse wanted to help others. When he was offered a chance to take part in a medical trial to test the safety of using gene therapy for OTC deficiency, he was keen to participate. He knew this was not a cure for his condition but that, by volunteering he might be able to help others in the future. Although the concept of gene therapy is simple, the practice of administering the treatment is much more difficult. In order to replace defective genes, doctors must get working ones into the body and to the place where they are needed.

  • SPECIAL 0x95 You do as you are told (Revisited)

    • February 27, 2003
    • BBC Two

    Horizon brings you the update on Stanley Milgram's obedience experiments and the importance of those findings for today's world.

  • S2003E08 Earthquake Storms

    • March 6, 2003
    • BBC Two

    Earthquakes are among the most devastating natural disasters on the planet. In the last hundred years they have claimed the lives of over one million people. Earthquakes are destructive mainly because of their unpredictable nature. It is impossible to say accurately when a quake will strike but a new theory could help save lives by preparing cities long in advance for an earthquake. The surface of the Earth is made up of large 'tectonic' plates. These plates are in slow but constant motion. When two plates push against each other friction generates a great deal of energy. For this reason earthquakes occur most frequently on tectonic fault lines, where two plates meet. However these fault lines run for thousands of kilometres; predicting exactly where a quake will occur is nearly impossible. In 1992, Dr Ross Stein was monitoring a large earthquake in a town in California called Landers. Three hours later, there was another quake 67km away at Great Bear. Stein believed that this was not simply an aftershock, instead he theorised the event at Landers had set off the earthquake at Big Bear. Stein believes that when an earthquake occurs the stress that has built up along the fault, is in part, transferred along the fault line. It is this energy transfer that causes other quakes to occur hours, days or months after the original.

  • SPECIAL 0x96 The Human Genome Project (Revisited)

    • March 6, 2003
    • BBC Two

    Horizon follows the updates by Baroness Helena Kennedy who revisits The Book of Man - originally broadcast in 1987 on the human genome project.

  • SPECIAL 0x97 Michael Adler on AIDS (Revisited)

    • March 13, 2003
    • BBC Two

    This episode is an update by Professor Michael Adler who revisits the 1987 Horizon broadcast on AIDS, "Can AIDS be Stopped?"

  • S2003E09 Life On Mars (Update)

    • March 27, 2003
    • BBC Two

    Are we alone in the Universe? Or are there aliens somewhere in space? New evidence suggests not only might other life-forms be out there, they may even be living on the planet right next door to us - Mars. Recent discoveries have shown that Mars has all the ingredients for life, including water. Now the Mars Odyssey probe, launched in April 2001, has detected huge frozen areas of permafrost, just like that found in the Antarctic on Earth. According to astronomers, the position of this frozen slush could hold the key to Mars' mysterious water cycle. And the surface ice may hide something even more exciting below.

  • S2003E10 The Secret Life Of Caves

    • April 3, 2003
    • BBC Two

    Set against the back drop of awe inspiring geological beauty, a strange scientific adventure sets out to discover how a mineral clad cave network - the height of a 30 storey building and the length of six football fields - came to exist deep below the Guadalupe Mountains in North America. But this journey soon unravels a multitude of inexplicable phenomena and obscure geological formations, leading to the discovery of extreme rock-eating microbes - a testimony from primordial Earth and a glimpse of life elsewhere in the Solar System. Geologists believed that all limestone caves were formed by rain and underground water percolating through cracks in the rocks. Absorbing carbon dioxide from the soil, this water becomes weak carbonic acid, nibbling away at limestone, etching out networks of subterranean caves.

  • S2003E11 God On The Brain

    • April 17, 2003
    • BBC Two

    Rudi Affolter and Gwen Tighe have both experienced strong religious visions. He is an atheist; she a Christian. He thought he had died; she thought she had given birth to Jesus. Both have temporal lobe epilepsy. Like other forms of epilepsy, the condition causes fitting but it is also associated with religious hallucinations. Research into why people like Rudi and Gwen saw what they did has opened up a whole field of brain science: neurotheology. The connection between the temporal lobes of the brain and religious feeling has led one Canadian scientist to try stimulating them. (They are near your ears.) 80% of Dr Michael Persinger's experimental subjects report that an artificial magnetic field focused on those brain areas gives them a feeling of 'not being alone'. Some of them describe it as a religious sensation. His work raises the prospect that we are programmed to believe in god, that faith is a mental ability humans have developed or been given. And temporal lobe epilepsy (TLE) could help unlock the mystery.

  • S2003E12 Flight 587

    • May 8, 2003
    • BBC Two

    265 people died when an Airbus operated by American Airlines crashed into the New York suburb of Queens in November 2001. The twin-engined jet took off from John F Kennedy Airport in fine conditions but hit trouble after just 67 seconds. In the following 38 seconds the plane started to disintegrate before nose-diving into the residential Rockaway area of the city. Everyone aboard was killed (along with five people on the ground) so the crash investigators had to rely on eyewitnesses, recovered parts of the plane and information from both air traffic control and the flight data recorders. The discovery of the Airbus' vertical tailfin hundreds of metres from the fuselage immediately focussed attention on whether the pilots lost the ability to control the plane. Why the tailfin detached was at the heart of the investigation by the National Transportation Safety Board. The airline and the manufacturer blame each other for creating a situation in which the stress on the rudder and tailfin exceeded the so-called ultimate load, the worst-case scenario set by the Federal Aviation Administration (FAA). A number of American Airlines pilots have taken matters into their own hands though: requesting transfers to other aircraft because of their safety concerns.

  • S2003E13 SARS: The True Story

    • May 29, 2003
    • BBC Two

    Severe Acute Respiratory Syndrome didn't even have its name in February 2003, when it struck its first known victim, Johnny Cheng, in Hanoi, Vietnam. Within days, an international effort led by the World Health Organization (WHO) had massed scientific expertise to fight the mystery illness and avert the nightmare scenario of an uncontrollable pandemic sweeping the globe. Amid attempts to quarantine high risk groups of people, it seemed only fear could spread more rapidly than the disease itself. Nothing was known about the condition - where it had come from, how it was passed on, how to spot it, contain it or treat it. The infection was described merely as 'flu-like'. But if this was a type of influenza, it was one that killed up to 15% of its sufferers. The doctor treating Mr Cheng, who first contacted the WHO about the unusual symptoms, was one of six medics to die of SARS at the hospital. But the alarm had been raised and the Organization began to pull together a response. Colossal effort by scientists around the world - and unprecedented co-operation - followed. Meanwhile, the media made much of the risk posed by and to international travel, and watched financial markets respond in gloomy fashion.

  • S2003E14 The Big Chill

    • November 13, 2003
    • BBC Two

    Remember that long, hot summer? You might never see its like again. And all that talk of global warming? Forget it. This season's first Horizon reveals that a growing number of experts fear Britain could be heading for a climate like Alaska. Our ports could be frozen over. Ice storms could ravage the country, and London could see snow lying for weeks on end. It would be the biggest change in the British way of life since the last Ice Age. The first signs that such a disaster could happen came from deep within the ice sheet of Greenland. Scientists discovered that the Earth's past was littered with sudden, drastic drops in temperature. The big question was: could it ever happen again? Clues came from tiny shells at the bottom of the Atlantic; a huge glacier on the move in Arctic and some alarming discoveries in the far north of Russia. In the end there came the terrifying revelation: the Gulf Stream, that vast current of water that keeps us warm, could be cut off. According to one scientist, there is a one in two chance it will happen in the next century. Others say a climatic catastrophe could be heading our way in just twenty years time.

  • S2003E15 The Bible Code

    • November 20, 2003
    • BBC Two

    This week Horizon investigates the science behind the Bible Code. What he can see is truly horrific; according to Drosnin, the world could end in an atomic holocaust - in 2006. It sounds preposterous yet Drosnin claims to have serious scientific backing. Behind his findings lies the work of one of the world's most brilliant theoretical mathematicians, an Israeli professor called Eliyahu Rips. In 1994, using exactly the same ancient code, Michael Drosnin accurately predicted the assassination of the Israeli Prime Minister Yitzak Rabin - twelve months before it occurred. Drosnin's books on the Bible Code have been translated into most of the world's major languages and are read by millions of people. If he's right, he's stumbled on one of the most important discoveries ever made.

  • S2003E16 Last Flight of the Columbia

    • November 27, 2003
    • BBC Two

    Mixing powerful and deeply moving footage with telling forensic analysis, Horizon reveals what really went wrong on the Space Shuttle Columbia. The film's final revelation is telling. If NASA had acted differently, all seven astronauts could have been brought back to Earth alive. The film begins with the astronauts' final moments and shows the haunting scenes at Mission Control at the moment the disaster struck. What then follows is a disturbing detective story as the investigators gradually realise that the tragedy was caused by the failure of a small panel on the shuttle's left wing that had been built to be indestructible. No one had ever thought such an accident was possible. It has led to the shuttle being grounded for the foreseeable future. But that wasn't all. The film also shows that NASA had a number of options to bring the crew back safely - if only it had commandeered a spy telescope to visually inspect the damage. It could even have launched a rescue mission. But instead, NASA chose to rely on a computer programme for damage assessment. The programme got it wrong; as a result, there was no hope for those seven crew members.

  • S2003E17 The Hunt for an AIDS Vaccine

    • December 4, 2003
    • BBC Two

    Horizon tells the microbiological detective story in which some of the best brains in science have been pitted against the most extraordinary bug the world has ever seen. In 1984 it was discovered that HIV was the cause of AIDS. Straight away, there were confident predictions that there would be a vaccine ready for testing in just two years. Back then, just 1,292 deaths from AIDS had been reported. Now the figure is 25 million dead. By 2010 it is predicted there will be 85 million infections and 70 million deaths. And after 20 years there is still no sign of a vaccine. Despite work of dazzling complexity, the ambition of so many brilliant scientists has been constantly thwarted. Just as a vaccine seems to be working, the AIDS virus alters itself, and ten to fifteen years of work, and millions of pounds, go down the drain. These bitter disappointments are only compounded by the desperate human urgency of the work. This is a story where the clock doesn't stop ticking.

  • S2003E18 Percy Pilcher's Flying Machine

    • December 11, 2003
    • BBC Two

    Could an unknown Englishman have been the first person ever to fly? To mark the hundredth anniversary of the Wright brothers inaugural flight, Horizon tells the remarkable story of Percy Pilcher. He could have been the most famous aviator of them all. Four years before the Wright brothers, he had constructed his own aeroplane. But on the day it was due to take off for the very first time, something so terrible happened that he was denied the chance of ever flying it. So Horizon has rebuilt his long lost flying machine to see if Percy Pilcher, the British amateur, could have claimed the glory and been the first person ever to fly. This film mixes dramatic reconstruction with fabulous contemporary scenes and gripping science. With a specially assembled team of historians, aviation experts and our own test pilot, Horizon painstakingly rebuilds Pilcher's flying machine and puts it to the test. The results will leave you cheering.

  • S2003E19 Time Trip

    • December 18, 2003
    • BBC Two

    Horizon's Time Trip is a thrilling journey deep into the strangeness of cutting-edge physics - a place where beautiful, baffling ideas are sometimes indistinguishable from the utterly crazy. On this journey, we meet a time-travelling pizza, a brilliant mathematician in a ski mask and even God. The journey ends with a strange and dark conclusion - one which calls into question our very existence. Ever since Einstein showed it was theoretically possible, the quest to travel through time has drawn eccentric amateurs and brilliant scientists in almost equal numbers. The amateurs include Aage Nost, who demonstrates his time machine in front of the cameras. The professionals include the likes of Professor Frank Tipler of Tulane University. His time machine sounds good - but it would weigh half the mass of the galaxy. There is, however, one way that time travel to the past could be possible. And it would be much more convenient. Future civilisations could use computers to create exact replicas of the past. Unfortunately that idea has physics trembling in its socks. Because if you can generate a perfect virtual reality version of the past, who's to say we are not one of the replicas?

Season 2004

  • S2004E01 The Demonic Ape

    • January 8, 2004
    • BBC Two

    In a film that is in turns charming, disturbing and poignant, Horizon explores the relationship between science and the chimpanzee. It began with a magical story. A young girl ventured alone into the jungle and befriended a group of chimpanzees. What she saw became the stuff of scientific legend. But then, last year came a terrible tragedy. Frodo, one of the chimpanzees she had helped make famous, killed a human baby. That shocking act brought into focus a huge debate about the relationship between humans and chimps, and what these primates have taught us about the origins of our own behaviour. The saga of how Jane Goodall went into the jungle to study the chimps of Gombe in Tanzania has inspired novels and movies. Her observations revealed that chimpanzees were in many ways like humans. They used tools, had culture and even language. And what's more they had empathy. They were also capable of savage brutality against their own kind. Just like us. In fact many began to think that the origins of aggressive human male behaviour could be traced back to our shared evolutionary ancestry with chimps. In other words, men are genetically programmed to be violent. But then came some disturbing questions.

  • S2004E02 The Moscow Theatre Siege

    • January 15, 2004
    • BBC Two

    With the help of doctors and scientists in America, Germany and Britain, Horizon unpicks the mystery of the Moscow theatre siege. In October 2002, Chechen terrorists took a thousand people hostage in a Moscow theatre and threatened to kill them. The problem was how to get them out alive. A bloodbath seemed inevitable. Three days later Russian special forces stormed the theatre using a secret gas to knock everybody out. 129 hostages died - apparently killed by the very gas that was meant to save them. Horizon investigates the mystery substance, and why so many died. The Russian authorities insisted their secret weapon was not lethal. The claim provoked contempt from the victims families, and incredulity among doctors and scientists around the world. But were the Russians actually right? The Russians offered just one clue. And in Germany there was a scientist who had the means to test it: a urine sample taken from one of the survivors shortly after he was freed. Horizon follows as extremely sensitive tests are performed to find out if the Russians were telling the truth, and uncovers a deeper secret.

  • S2004E03 The Atkins Diet

    • January 22, 2004
    • BBC Two

    This is the truth about the world's most famous, most glamorous and most controversial diet. The Atkins diet says that eating fat can make you thin. It says you don't need to bother watching the calories. Rene Zellweger, Geri Halliwell and a host of other celebrities swear by it. But many scientists think it is scientific nonsense. Some even believe it is dangerous. Horizon cuts through the confusion and provide the answers. When Dr Atkins first launched his diet, he was accused of breaking one of the most fundamental laws of nature. Scientists said that if you eat more, you'll get fatter. They also said it could kill. Fat increases your cholesterol levels. You'd get a heart attack. The only problem was that people who followed the Atkins diet got thinner. Much of the rest of us got fatter. Then came studies showing that cholesterol levels can actually improve on the Atkins diet. So what was going on? Horizon's investigation seems to show that the diet may really work - but for a reason and in a way that no scientists or even Atkins himself had seriously considered.

  • S2004E04 Secrets of the Star Disc

    • January 29, 2004
    • BBC Two

    This is the extraordinary story of how a small metal disc is rewriting the epic saga of how civilisation first came to Europe, 3600 years ago. When grave robbers ransacked a Bronze Age tomb in Germany, they had no idea that they had unearthed the find of a lifetime. But they knew that it was worth selling. It was a small bronze disc of exquisite design. So they contacted the archaeologist Harald Meller, offering to sell it to him for €300,000. Meller went deep into the criminal underworld and, after a police sting, he got his disc. It depicted the sun, the moon and the stars. This suggested an understanding of the heavens greater than that of the first great civilisations, like Egypt. Could it possibly be real? After exhaustive tests, the disc was declared genuine. Then a team of crack scientists pieced together what it meant. What emerged is a true marvel. This disc, it seems, is a Bronze Age Bible, combining an advanced understanding of the stars with some of the most sophisticated religious imagery of the age. In intellectual achievement and also age, it surpasses anything yet found in Egypt or Greece. It seems that civilisation had already dawned in Europe.

  • S2004E05 The Dark Secret of Hendrik Schön

    • February 5, 2004
    • BBC Two

    Imagine a world where disease could be eradicated by an injection of tiny robots the size of molecules. That is the hope offered by nanotechnology - the science of microscopically small machines. But others fear nanotechnology could lead to a non-biological cancer - where swarms of tiny nanobots come together and literally devour human flesh. Sounds like science fiction? It certainly did until a brilliant young scientist called Hendrik Schön seemed to bring it a step closer. Schön's great breakthrough was to make a computer transistor out of a single organic molecule. It was an achievement of almost incalculable brilliance. Some speculated this technology could spell the end of the entire silicon chip industry. Crucially, Schön's transistor was organic. Suddenly, this seemed to be the first step towards true nanotechnology, where minute computers could grow as living cells. Scientists speculated about how these tiny machines could be used to target diseases with astonishing precision. Others wondered - could the military use them as a new weapon? Others, including Prince Charles, were terrified. If these machines can grow by themselves, how do we stop them from growing? What happened next would destroy reputations and shatter lives - because there was more to Hendrik Schön's discovery than anyone knew.

  • S2004E06 Thalidomide - A Second Chance?

    • February 12, 2004
    • BBC Two

    Thalidomide was one of the biggest medical tragedies of modern times. The images of children born with shrunken limbs still haunt anyone who sees them. And the tragedy is not over. Those children are adults today, still coping with their disability. For many, thalidomide is a drug that should be consigned to the dustbin of history - an awful cautionary tale of the errors that science can make. But now it is making a comeback - as a radical treatment for incurable blood cancers. But can it possibly be safe to use such a dangerous drug again? In a powerful and deeply moving film, Horizon tells the tale of thalidomide and how this drug that has become so infamous may now be giving hope to people who otherwise face death. It also explores the mystery at the heart of thalidomide. It seems that the reason why it works for cancer may at least partly explain something that has long baffled scientists - why thalidomide caused such terrible damage to babies in the womb all those years ago.

  • S2004E07 Diamond Labs

    • March 4, 2004
    • BBC Two

    Top quality diamonds at knock down prices? The only catch is: these rocks don't come out of the ground, but are made in a lab. This is the promise offered by a series of recent scientific breakthroughs. For most of us, it seems we may soon be able to bejewel ourselves like movie stars. But for De Beers, the world's largest diamond trader, could this, one day, be a serious threat? Following a dodgy meeting in Moscow, retired US Army General Carter Clarke acquired some experimental diamond growing machines, originally destined for the Russian military. He created the world's first gem diamond production line, to mass produce highly prized coloured diamonds. In a secret location south of Boston, a father and son team developed a different technique. Robert Linares and son Bryant have made colourless diamonds, allegedly higher quality than those found in nature. De Beers, at vast cost, set up a new scientific division called the Gem Defensive Programme. Its goal: to find ways to tell apart their natural diamonds from these new synthetic gems. But will the new synthetics slip through De Beers detection net? And could anyone really tell the difference? Horizon tells the story of the Diamond Labs.

  • S2004E08 T-Rex - Warrior or Wimp?

    • March 11, 2004
    • BBC Two

    Tyrannosaurus rex - it's the scariest, meanest, most bewitching dinosaur of them all. Children are captivated by the sheer savagery of the teeth. Experts marvelled at the force of its bite - ten times more powerful than anything we know today. Movie makers made millions out of the terror it inspired. But could our picture of this monster be completely wrong? Was T. rex in fact a slow lumbering creature, with hideously bad breath, that couldn't get anywhere close to catching a Triceratops. Was it really a scavenger that lived off the scraps left by others? Was T. rex, in fact, a wimp? Featuring fabulous graphics and interviews with T. rex experts from around the world, Horizon looks at the new science that is challenging the legend of the dinosaur we love to hate.

  • S2004E09 Project Poltergeist

    • March 18, 2004
    • BBC Two

    This is the story of two genuine scientific heroes. For forty years, John Bahcall and Ray Davis were engaged in a single extraordinary experiment - to find out why the Sun shines. In the end they would triumph. Davis would win the Nobel Prize and, thanks to their work, a whole new theory about how the universe is put together may have to be created. At the heart of this story is a tiny, utterly mysterious thing called a neutrino. Trillions of them pass through your body every second, touching nothing, leaving no trace. Yet neutrinos are one of a handful of fundamental particles in the universe, essential to every atom in existence and clues to what makes the Sun work. But their ghost-like quality made trapping and understanding them immensely difficult. What then followed was a bizarre series of experiments. They led from a vat containing 600 tons of cleaning fluid, to a vast cavern in a Japanese mountain, to a hole in the ground in Canada two kilometres deep. What they would reveal would stun the world of science. It seems that neutrinos may be our parents. They may be the reason why everything, including us, exists.

  • S2004E10 The Truth of Troy

    • March 25, 2004
    • BBC Two

    It's one of the greatest stories ever told. The legend of Helen of Troy has enchanted audiences for the last three thousand years. In May this year a Hollywood film staring Brad Pitt and Orlando Bloom will be launched in Britain. But is there any reality to the myth? Horizon has unprecedented access to the scientist with the answers. Since 1988 Professor Manfred Korfmann has been excavating the site of Troy. He has never before spoken at this length. He has made amazing discoveries - how large the city was, how well it was defended and, crucially, that there was once a great battle there at precisely the time that experts believe the Trojan war occurred. But who had attacked the city and why? Horizon then follows a trail of clues - the ancient tablets written by a lost civilisation, the sunken ship rich in treasure, and the magnificent golden masks and bronze swords of a warrior people. The film reaches its climax in a tunnel deep beneath Troy, where Korfmann has made a discovery that may reveal, once and for all, the truth behind the myth. The story that emerges is one of great passion - but not, it seems, about love.

  • SPECIAL 0x44 First Olympian

    • July 23, 2004
    • BBC Two

    In this documentary, Horizon reports on a skeleton was found 50 years ago in Southern Italy. The bone structure suggests the owner was an ancient athlete.

  • S2004E11 The Truth About Vitamins

    • September 16, 2004
    • BBC Two

    Every year we spend £300 million on vitamin supplements, but do they actually do us any good? Some believe they offer the promise of preventing or even curing some of the world's biggest killers, such as heart disease and cancer. Others claim that taking large doses of some vitamins may in certain cases be harmful. So what are the facts? Nearly 40 years ago, one of the greatest scientists of the 20th century and double Nobel Prize winner, Linus Pauling, revolutionised the way people thought about vitamins. He claimed that by taking huge doses of vitamin C you could prevent or even cure the common cold. He predicted that if everybody followed his advice, the common cold could even be eradicated. Many scientists dismissed his theory as quackery, but the public loved it and it helped launch a huge industry. But the latest evidence shows the great man was mistaken. Vitamin C can help you once have got a cold, but for most people it does nothing to prevent you from catching one in the first place. Even if large doses of vitamin C do not prevent the common cold, some claim that it can still offer a more profound benefit. It is one of a group of vitamins called anti-oxidants that some believe can prevent illnesses such as cancer, Alzheimer's and heart disease. In 2004, scientists in the United States claimed that people could be missing any of the potential benefits of taking one of the world's most popular anti-oxidant vitamin supplements, vitamin E, because their bodies might not be absorbing it. But our own investigation suggested that the American scientists' conclusion could be mistaken. While most safety experts believe that vitamins C and E can be taken safely even in quite large doses, there is worrying evidence that one form of another common vitamin, vitamin A, could be linked to osteoporosis, a debilitating bone disease. If the theory is right it means that a person's diet, or some supplements that they take every day to improve their health,

  • S2004E12 King Solomon's Tablet of Stone

    • September 23, 2004
    • BBC Two

    2001. A clandestine meeting of leading Israeli archaeologists are shown a remarkable artefact. It's a stone tablet, apparently from 1,000BC. The writing on its face describes repairs to the temple of King Solomon. It is the first archaeological evidence ever found of this legendary building. The relic caused a sensation. But this was only just the start. For authentication, the tablet was taken to the Geological Survey of Israel. Here, after a battery of tests, including radiocarbon dating, scientists officially pronounced the stone to be genuine. The tests even revealed microscopic particles of gold in the outer layer of stone. These were apparently the result of the tablet surviving the fire which, according to the bible, destroyed the temple when the Babylonians sacked Jerusalem in 586BC. The stone tablet was offered for sale to the Israel Museum, home to many of Israel's greatest treasures. Rumours suggested the asking price was as high as $10million. But the museum needed to know where the stone had come from. Even its owner was a mystery. To make matters more complex, the stone itself had disappeared again. The Israeli Antiquities Authority wanted answers. A nine month search for the mysterious stranger who had first appeared with the stone eventually led them to a private detective who had been hired by a well known antiquities collector, Oded Golan. Golan insisted he too was just a front man for another collector. But the authorities were suspicious. He was known to be the owner of the James Ossuary, another extraordinary artefact which had appeared a couple of years earlier. This was a burial box with an inscription linking it to Jesus' brother. The authorities raided Golan's apartment and recovered both the ossuary and the elusive stone. It was time to establish once and for all if both were genuine. So they set up a committee of linguists and scientists to examine them. Looking at the stone, several linguists said 'fake'. Some of the Heb

  • S2004E13 Derek Tastes of Earwax

    • September 30, 2004
    • BBC Two

    Is Wednesday red? Take part in our experiment to test whether your senses overlap. Do melodies have a colour? Take part in our experiment to test whether you hear colours. Imagine if every time you saw someone called Derek you got a strong taste of earwax in your mouth. It happens to James Wannerton, who runs a pub. Derek is one of his regulars. Another regular's name gives him the taste of wet nappies. For some puzzling reason, James's sense of sound and taste are intermingled. Dorothy Latham sees words as colours. Whenever she reads a black and white text, she sees each letter tinged in the shade of her own multi-coloured alphabet - even though she knows the reality of the text is black and white. Spoken words have an even stranger effect. She sees them, spelled out letter by letter, on a colourful ticker tape in front of her head. Both James and Dorothy have a mysterious condition called synaesthesia, in which their senses have become linked. For years scientists dismissed it, putting it in the same category as séances and spoon-bending. But now, synaesthesia is sparking a revolution in our understanding of the human mind. Two synaesthetes seldom agree on the colours or tastes they experience. While Covent Garden may taste of crinkly chocolate to James, it's very unlikely to have the same taste for another synaesthete. And Dorothy's brother Peter, also a synaesthete, won't see M or Z in the same colour as she does. But despite these differences, scientists are now beginning to discover more and more overarching synaesthetic patterns. Dorothy doesn't only see letters and numbers in colour. Music produces a riot of colour, too. As Dorothy hears notes going from low to high, her colours change from black and purple to mid-browns and then yellows and whites. Overall, lower notes evoke darker colours and higher notes brighter colours - and this pattern is true for most synaesthetes. But surprisingly, when non-synaesthetes are asked to match colours

  • S2004E14 What Really Killed the Dinosaurs?

    • October 7, 2004
    • BBC Two

    Until recently most scientists thought they knew what killed off the dinosaurs. A 10km-wide meteorite had smashed into the Yucatan peninsula in Mexico, causing worldwide forest fires, tsunamis several kilometres high, and an 'impact winter' - in which dust blocked out the sun for months or years. It was thought that the dinosaurs were blasted, roasted and frozen to death, in that order. But now a small but vociferous group of scientists believes there is increasing evidence that this 'impact' theory could be wrong. That suggestion has generated one of the bitterest scientific rows of recent times.

  • S2004E15 Making Millions the Easy Way

    • October 14, 2004
    • BBC Two

    In the mid-1990s, a team of American science students took on the might of the Las Vegas casinos, and came home with millions of dollars. Hard working engineering students during the week, they became high-rolling gamblers by the weekend and proved that, in one game at least, the house doesn't always win. The game was blackjack, and the students were from the world-renowned Massachusetts Institute of Technology (MIT). Their audacious winnings marked the climax of an arms race between casino and player that began 40 years earlier with maths professor Edward Thorp. He realised that the one feature of blackjack that made it different from other casino games also made it possible to beat. In most gambling games - roulette, dice, slot machines, the lottery - events in the past do not determine the future. The odds are the same on every roll of the dice or spin of the wheel. Winning streaks or losing streaks may occur, but they are only one possible result from the set of all possible outcomes. A fair coin that has shown heads ten times, still only has a 50% chance of showing heads on the next flip. Casinos and bookmakers make certain that the odds are always stacked slightly in their favour. In other words, over time, the house will always win.

  • S2004E16 Saturn - Lord of the Rings

    • October 21, 2004
    • BBC Two

    With its famous rings, Saturn is the most distant planet clearly visible to the naked eye. But how did the rings get there and when were they formed? To study the planet in detail, scientists needed to get closer. So on 15 October 1997, the Cassini-Huygens spacecraft was launched. The Cassini-Huygens is one of the most ambitious spacecraft ever launched, taking seven years to reach Saturn. The mission itself consists of two separate probes. The first is the enormous Cassini probe, designed to gather information about all aspects of the Saturnian system, from its many rings to its 33 moons. The second is the Huygens probe, a smaller wok-shaped craft, attached to the side of Cassini. Its task is to plunge through the atmosphere of Titan, Saturn's largest and most mysterious moon. The project is a joint NASA, European Space Agency (ESA) and Italian Space Agency venture. It has cost $3.27 billion and involves over 17 countries. It was inspired by another successful mission- the launch of the two Voyager Deep Space probes. These left Earth in 1977, and arrived separately at Saturn in 1980 and 1981. They sent back revolutionary data, changing what scientists thought about the Saturnian system. They revealed that Saturn's rings are far more complex and dynamic than any one had ever imagined. They also suggested that the rings had been formed after the planet itself. Why? And how old were they? But the Voyager probes had to move on, past Uranus and Neptune and beyond, leaving these fundamental questions about the rings unanswered. Voyager also raised another mystery - Titan. Titan isn't just Saturn's largest moon, it is also shrouded in a thick orange atmosphere, composed mainly of nitrogen - similar to the Earth's atmosphere. Finding a place so far away which shared features with our own world was exceptionally tantalising. The building of the Cassini-Huygens project began in 1990. The Cassini probe was named after the French-Italian astronomer Jean-Dominiqu

  • S2004E17 The Hunt for the Supertwister

    • October 28, 2004
    • BBC Two

    On 3 May 2003 a tornado smashed through two suburbs of Oklahoma City. It had struck at the height of the tornado season, yet residents were still shocked by the destruction it wrought. Eight thousand homes were destroyed, a billion dollars of damage was wreaked and 40 people lost their lives. What had hit Oklahoma City that day was not just any old tornado - it was a super-twister. Tornadoes are classified on the Fujita scale, or F-scale. Most tornadoes that occur around the world can be classified on the lower reaches of the scale - the F0s, F1s or F2s. These can still cause damage and have winds in excess of 160km/h. Supertwisters are an altogether different beast. Terrifying and destructive, at their most extreme they are powered by wind travelling in excess of 480km/h. This is strong enough to lift strong framed houses from their foundations and seriously damage even reinforced concrete. Every year hundreds of people around the world are killed or injured by supertwisters. Yet what makes them even more terrifying is that it is practically impossible to predict their appearance or movement. Why they form in the first place remains a mystery. Most US tornadoes occur in Tornado Alley, a flat mid-western stretch from Texas in the south to the Dakotas in the north. High season for supertwisters tends to be during spring, from March to June. Tornadoes usually appear during a thunderstorm. Supertwisters are associated with super-cells, the largest thunderclouds of all. These are enormous rotating columns of air that can be over 30km across and 18,000 metres high - twice the height of Mount Everest. All tornadoes form when warm, moist air is pushed upward by a mass of cold air. This creates an updraft within the stormcloud that can cause a large mass of circulating air. When this air comes in contact with the ground it becomes a tornado. What is not known is precisely what triggers this final stage to form a tornado... A group of scientists are tryi

  • S2004E18 Dr Money and the Boy with No Penis

    • November 4, 2004
    • BBC Two

    On 22 August 1965 Janet Reimer was granted her dearest wish: she gave birth to twins. The two boys, Brian and Bruce, were healthy babies, but they would lead tragic lives, blighted by one scientist's radical theory. When they were seven months old, the boys, who lived in Winnipeg, Canada, were sent to the local hospital for a routine circumcision. Unfortunately the doctor in charge of the procedure was using electrical equipment, which malfunctioned several times. On the last trial, Bruce's entire penis was burnt off. Brian was not operated on. The family were distraught. In the Sixties plastic surgery was not an option: even today it is not recommended that new-borns undergo penis reconstruction operations. It wasn't until several months later that Janet and her husband, Ron, saw a television programme that gave them some hope. Dr John Money, a highly renowned sexologist, featured in a debate about sex change operations on transsexuals. He had brought a transsexual with him who was convincingly feminine looking. Perhaps, thought Janet Reimer, this was the solution - they could turn their baby son into a daughter. She wrote to Dr Money immediately. He responded swiftly and invited them to come and visit him in Baltimore, Maryland. Dr Money is a highly intelligent, well respected, charismatic individual. He suggested to the Reimers that they bring their son up as a girl. Thus, when Bruce was 18 months old, he was castrated and a rudimentary vulva was created for him. The family now called him Brenda and tried to treat him like a little girl. Dr Money was the answer to the Reimers' prayers, but they were the answer to his too. He had studied people known then as hermaphrodites, now referred to as intersex, who are physically both male and female. As it was surgically easier to turn these people into females, this was standard practice. Dr Money had used case studies of hermaphrodites to show that there was a window of opportunity for surgery - a 'gen

Season 2005

  • S2005E01 Global Dimming

    • January 13, 2005
    • BBC Two

    Horizon producer David Sington on why predictions about the Earth's climate will need to be re-examined.

  • S2005E02 Einstein's Unfinished Symphony

    • January 20, 2005
    • BBC Two

    The unpredictable results of the Theory of Relativity. Horizon brings you the second part of a two-part series on Albert Einsten. In the summer of 1939 Albert Einstein was on holiday in a small resort town on the tip of Long Island. His peaceful summer, however, was about to be shattered by a visit from an old friend and colleague from his years in Berlin. The visitor was the physicist Leo Szilard. He had come to tell Einstein that he feared the Nazis could soon be in possession of a terrible new weapon and that something had to be done.

  • S2005E03 Einstein's Equation of Life and Death

    • January 27, 2005
    • BBC Two

    The story of Einstein's most famous equation E=mc² – its role in the creation of the atom bomb and our understanding of the beginnings of the Universe. Horizon brings you the second part of a two-part series on Albert Einsten. In the summer of 1939 Albert Einstein was on holiday in a small resort town on the tip of Long Island. His peaceful summer, however, was about to be shattered by a visit from an old friend and colleague from his years in Berlin. The visitor was the physicist Leo Szilard. He had come to tell Einstein that he feared the Nazis could soon be in possession of a terrible new weapon and that something had to be done.

  • S2005E04 Living with ADHD

    • March 3, 2005
    • BBC Two

    In this documentary, Horizon investigates Attention Deficit Hyperactivity Disorder (ADHD), which is one of the most feared and misunderstood of all medical conditions. Despite over 200 scientific papers being published on this neurological condition every year, it remains stigmatised and controversial. Some doctors don't even believe it exists. Yet it is estimated that as many as 3-5 percent of the childhood population, and over one million adults in the UK are affected by ADHD. These people are often described as stupid, lazy, disorganised, wild, out of control or woozy on drugs. But the reality is altogether more complex, and deeply moving.

  • S2005E05 Neanderthal

    • February 10, 2005
    • BBC Two

    Horizon investigates a strange skull that was discovered in 1848 on the military outpost of Gibraltar. It was undoubtedly human, but also had some of the heavy features of an ape... distinct brow ridges, and a forward projecting face. Just what was this ancient creature? And when had it lived? As more remains were discovered one thing became clear, this creature had once lived right across Europe. The remains were named Homo neanderthalensis (Neanderthal man) an ancient and primitive form of human.

  • S2005E06 An Experiment to Save the World

    • February 17, 2005
    • BBC Two

    In this documentary, Horizon follows the scientific world that was rocked by some astonishing news in March 2002 where a distinguished US government scientist claimed he had made nuclear fusion out of sound waves in his laboratory.

  • S2005E07 Who's Afraid of Designer Babies?

    • February 24, 2005
    • BBC Two

    This Horizon episode is about genetics in humans. Every parent wants their child to have the best in life. But would this extend to picking the best genes for them? To date, genetic technology has only been used to treat serious disease in children. But as ways are developed to manipulate our DNA, there are those who think that parents will inevitably want to choose their children's genes, and create 'designer babies'.

  • S2005E08 The Lost Civilisation of Peru

    • March 3, 2005
    • BBC Two

    Horizon brings us back two thousand years ago when a mysterious and little known civilization ruled the northern coast of Peru. Its people were called the Moche.

  • S2005E09 The Next Megaquake

    • May 22, 2005
    • BBC Two

    In this documentary on earthquakes, Horizon starts with the worst natural disasters of all time in December 2004. The cause of so much devastation was the most powerful kind of earthquake on the planet - a megathrust. Megathrust earthquakes only occur on a particular kind of fault. Scientists have now discovered that just such a fault could cause a huge megathrust earthquake and tsunami right off the coast of North America.

  • S2005E10 Does the MMR Jab Cause Autism?

    • May 29, 2005
    • BBC Two

    In this documentary, Horizon presents the largest public health issue of recent years that has attracted such heated debate as the question of whether the MMR vaccine can cause autism. The MMR jab combines three childhood vaccines, against measles, mumps and rubella, into one injection, which is first given to children at around 12-18 months. Horizon presents new, exclusive evidence about the MMR jab.

  • S2005E11 Malaria: Defeating the Curse

    • June 5, 2005
    • BBC Two

    This is the story by Horizon of an epic battle between science and nature. It's a battle to destroy a disease that is one of the biggest killers on the planet: malaria.

  • S2005E12 Tsunami: Naming the Dead

    • September 1, 2005
    • BBC Two

    How the biggest international forensic operation in history identified the victims of the most devastating natural disaster of recent times.

  • S2005E13 The Hawking Paradox

    • September 8, 2005
    • BBC Two

    Has Stephen Hawking been wrong about the universe for the last 30 years? Horizon explores his latest theory.

  • S2005E14 The Mystery of the Human Hobbit

    • September 15, 2005
    • BBC Two

    Is the hobbit a new human species or nothing more than a modern human with a crippling deformity?

  • S2005E15 The Doctor Who Makes People Walk Again?

    • October 6, 2005
    • BBC Two

    At the Xishan Hospital, near Beijing, a remarkable medical pilgrimage is taking place. The sick and the dying are travelling here for a treatment pioneered by Dr Huang Hongyun. He claims he can restore functions that Western doctors said were lost forever. Horizon investigates his methods but are they too much too soon.

  • S2005E16 Could Fish Make My Child Smart?

    • October 6, 2005
    • BBC Two

    Scientists once got sacked for suggesting oily fish was good for you. Now all and sundry are hailing it as a panacea.

  • S2005E17 Madagascar - A Treetop Odyssey

    • October 13, 2005
    • BBC Two

    Time is running out for the rainforest, but a team of scientists have come up with a unique strategy to help save it: a giant inflatable raft.

  • S2005E18 Titan. A Place Like Home?

    • November 10, 2005
    • BBC Two

    Over a billion kilometres away, Saturn's largest moon, Titan, holds tantalising clues to how life began here on Earth. Horizon tells the story of the Cassini-Huygens spacecraft, the most ambitious and expensive interplanetary space mission of all time.

  • S2005E19 The 7/7 Bombers: A Psychological Investigation

    • December 8, 2005
    • BBC Two

    On 7 July 2005 Britain experienced its first ever suicide attack. Four bombs exploded in central London, killing 52 people and injuring over 700. When Scotland Yard launched one of the biggest investigations in its history, another first was quickly uncovered: the suicide bombers were home-grown, they were young British men, attacking their own country. Horizon explores what makes someone want to blow themselves – and others - up?

  • S2005E20 The Ghost in Your Genes

    • December 15, 2005
    • BBC Two

    The controversial science of epigenetics suggests you may inherit a lot more than you imagine from your forebears. The scientists who believe your genes are shaped in part by your ancestors' life experiences.

Season 2006

  • S2006E01 The Life and Times of El Niño

    • January 3, 2006
    • BBC Two

    In this intriguing BBC science documentary, The Life and Times of El Niño combines history and science to show how this meteorological monster has affected global economy and political history. As a little understood climatic event, El Niño has caused the worst ever yellow fever epidemic in America, cannibalism in China, and in more recent times, the erosion of the coral reef in Australia and severe flooding in Brazil. But, as our knowledge of El Niño grows and attempts are made to predict its worldwide effects, The Life and Times of El Niño asks - could the power of one of nature's most destructive occurrences ever be contained? The Life and Times of El Niño is a science education resource investigating both the history and science of this climatic event.

  • S2006E02 Space Tourists

    • January 12, 2006
    • BBC Two

    Is a space tourism revolution just around the corner?

  • S2006E03 Waiting for a Heartbeat

    • January 19, 2006
    • BBC Two

    The story of three women as they attempt to overcome the odds and give birth to a baby.

  • S2006E04 A War on Science

    • January 26, 2006
    • BBC Two

    Horizon explores a new theory of evolution.

  • S2006E05 The Lost City of New Orleans

    • February 2, 2006
    • BBC Two

    The coastline that protects the city of New Orleans is sinking into the ocean. Horizon explores what can be done to save the city if it is worth saving at all.

  • S2006E06 Most of Our Universe Is Missing

    • February 9, 2006
    • BBC Two

    Only 4% of our universe is made from stuff we understand. Horizon explores the 96% that is made up of the elusive substance 'Dark Matter'.

  • S2006E07 Winning Gold in 2012

    • March 18, 2006
    • BBC Two

    An investigation into the scientific approach to sporting success, as demonstrated by the former East Germany and latterly Australia. British children are already in training for the London Olympics and the programme looks at what it takes to produce a successful modern Olympian.

  • S2006E08 The Woman Who Thinks Like a Cow

    • June 8, 2006
    • BBC Two

    The amazing story of Dr Temple Grandin's ability to read the animal mind, which has made her the most famous autistic woman on the planet.

  • S2006E09 The Genius Sperm Bank

    • June 15, 2006
    • BBC Two

    The curious tale of an American millionaire optometrist and his dream to save humanity.

  • S2006E10 Bye Bye Planet Pluto

    • June 22, 2006
    • BBC Two

    Is Pluto really a planet? Is it just an asteroid? Horizon investigates.

  • S2006E11 We Love Cigarettes

    • June 29, 2006
    • BBC Two

    The science series explores varying attitudes to smoking around the world. Filmed in a single day, the documentary meets the people whose lives are defined by the cigarette. Contributors include Allen Carr, who claims he may get viewers to quit by the end of the programme, the inventor of the nicotine patch Dr Jed Rose and Dr Chris Proctor, the chief scientist at British American Tobacco who has the tricky task of making a safer cigarette.

  • S2006E12 Nuclear Nightmares

    • July 13, 2006
    • BBC Two

    Horizon explores the topical scientific issues investigates, the truth behind our fear of radioactivity and asks whether our nuclear nightmares really are based on reality. From Hiroshima to Chernobyl scientists have been studying the impact of exposure to radiation for over 60 years and have always assumed that any level of radiation is bad. But now some scientists are questioning the power of radiation to cause cancer and finding evidence to suggest that it may have beneficial health effects.

  • S2006E13 Tutankhamun's Fireball

    • July 20, 2006
    • BBC Two

    A team of scientists set out to solve the mystery of chunks of ancient glass scattered in a remote part of the Sahara Desert. Their quest takes them on a perilous journey into the Great Sand Sea, the wastes of Siberia and the test site of the world's first atomic bomb in New Mexico. What their search uncovers is a devastating new natural phenomenon.

  • S2006E14 Survivor's Guide to Plane Crashes

    • October 3, 2006
    • BBC Two

    Over 90% of plane crashes have survivors. Horizon investigate what you can do to increase your chances.

  • S2006E15 Chimps are People Too

    • October 10, 2006
    • BBC Two

    Danny Wallace is on a mission to convince the world that chimps are people are to. If they are should they have the same rights as people?

  • S2006E16 The World's First Face Transplant

    • October 17, 2006
    • BBC Two

    In 2005, Isabelle Dinoire become the first person to receive a new face. The decision made by French surgeons to perform the operation went against the findings of almost every other ethical committee in the world and has since sparked a fierce debate over the ethics of the operation. In the UK, a team led by Peter Butler struggles to get approval to perform the first full face transplant. Do the risks outweigh the benefits? Are face transplants really in the best interest of the patient? Horizon investigates.

  • S2006E17 Human v2.0

    • October 24, 2006
    • BBC Two

    It has been predicted that by 2029 computers will be powerful enough to rival that of the human brain. Will be able to download ourselves into a computer and live forever? Or will a race of super intelligent destructive machines rise. The only thing we know for sure is the moment is coming and whatever it brings is inevitable.

  • S2006E18 The Great Robot Race

    • October 31, 2006
    • BBC Two

    20 robotic cars, with no drivers and no remote controls, race across the Nevada desert. Horizon follows 3 teams and their cars as they develop their vehicles.

  • S2006E19 Pandemic

    • November 7, 2006
    • BBC Two

    A simple virus that started in the belly of a dead bird is set to embark on a global killing spree. H5N1 - a bird flu virus with the potential to become humanised and mutate into the next pandemic flu virus. Horizon explores what could happen if a flu pandemic hits. The last flu pandemic in 1918 killed an estimated 50 million people worldwide. A virus today can spread much easier, much faster and there are estimates that hundreds of millions could be infected and potentially die.

  • S2006E20 We are the Aliens

    • November 14, 2006
    • BBC Two

    Clouds of alien life forms are sweeping through outer space and infecting planets with life – it may not be as far-fetched as it sounds. The idea that life on Earth came from another planet has been around as a modern scientific theory since the 1960s when it was proposed by Fred Hoyle and Chandra Wickramasinghe. At the time they were ridiculed for their idea – known as panspermia. But now, with growing evidence, it's back in vogue and even being studied by NASA. Horizon meets the scientists on a mission to get to the bottom of the beginnings of life on Earth - from the team in Texas who are lovingly building a robotic submarine called DEPTHX to explore a moon of Jupiter, to Southern India where they are investigating a mysterious red rain which fell for two months in 2001. According to local scientist Godfrey Louis, the rain contains biological cells unlike any he had seen before – with no DNA and the ability to replicate at 300°C. Louis has come to the conclusion that the cells are extra-terrestrial in origin.

Season 2007

  • S2007E01 My Pet Dinosaur

    • March 13, 2007
    • BBC Two

    What if dinosaurs were still alive today? Would we hunt them, farm them - or even keep them as pets? It's a palaeontologist's dream: the chance to live in a world where dinosaurs are not something to be dug out of the ground but are living among us. It may sound far-fetched but dinosaurs were actually rather unlucky. The meteorite impact that doomed them to extinction was an event with a probability of millions to one. What if the meteorite had missed? Had dinosaurs survived, the world today would be very different. If humans managed to survive alongside them, we wouldn't have the company of most, if not all, of the mammals with which we are familiar today. Giraffes, elephants and other mammals wouldn't have had space to evolve. Would we be hunting Hadrosaurs instead of elk? Or farming Protoceratops instead of pigs? Would dinosaurs be kept as pets? And could the brighter dinosaurs have evolved into something humanoid?

  • S2007E02 The Elephant's Guide to Sex

    • March 20, 2007
    • BBC Two

    How do you save an endangered species? Get the animals in the mood for love. Thomas Hildebrandt possesses one of the world's most extraordinary jobs - getting the planet's endangered animals in the mood for love. The planet's creatures are facing the biggest mass extinction since the dinosaurs were wiped out. Species are currently disappearing at up to 10,000 times the natural rate. Coming to the rescue are men like Dr Hildebrandt and his team. They are world leaders in the art of animal manipulation. The billions of pounds spent benefiting human reproduction are now being applied to save endangered species. Techniques such as artificial insemination and IVF have been crucial to the successes in breeding giant pandas, big cats and other mammals in zoos across the world. As Thomas Hildebrandt says "Man has created this annihilation of species. It's up to man to use his ingenuity to save them."

  • S2007E03 Prof. Regan's Beauty Parlour

    • March 27, 2007
    • BBC Two

    Professor Lesley Regan is on a mission to fill her bathroom cabinet with cosmetics that actually work. Professor Lesley Regan, one of the UK's most well-respected (and glamorous) medical experts, turns her scientific eye on the world of cosmetics. She's just turned 50, and is out to create an experimentally proven beauty cabinet. Unafraid to examine the wrinkles, age spots and broken veins on her own face, Professor Regan explores just what makes us look old, and if we can slow down the ageing process. The extraordinary world of cosmetic testing is revealed, from the British hair lab which makes New York tap water, to the volunteers sun-bathing for science. Sun damage, cellulite and balding all face Professor Regan's scrutiny as she discovers which cosmetics do - and don't - have the scientific evidence to back up their claims.

  • S2007E04 Mad but Glad

    • April 3, 2007
    • BBC Two

    Pianist Nick van Bloss has Tourette's syndrome. Is his illness a blessing or a curse? Is there really such a thing as the mad genius? Can an illness be both a blessing and a curse? At seven years old, Nick van Bloss started shaking his head, grinding his teeth and making wild whooping noises. Nick had Tourette's syndrome. No medical intervention helped him. But one activity stopped it all... The moment Nick placed his hands on the piano keys his symptoms vanished. By the age of 20, he was an award winning international pianist. He felt sure that his illness had made him the success he was. But there is a catch. The brain state necessary for his genius can also be dangerously close to mental chaos. Nick's personal journey reveals how close he came to the edge and how determined he is to triumph.

  • S2007E05 Moon for Sale

    • April 10, 2007
    • BBC Two

    After 40 years man is going back to the Moon. But this time astronauts plan to stay there. After 40 years, man is preparing to return to the Moon. But this time the astronauts won't just land on the Moon - they plan to stay. From his office in Nevada, Dennis Hope has spawned a multi-million dollar business selling lunar real estate. But scientists believe the real prize is trapped in the Moon's rocks. It contains large deposits of an extremely rare gas called Helium-3. Could Helium-3 be mined and used as a new source of almost inexhaustible, clean and pollution-free energy on Earth? Whoever succeeds in transporting Helium-3 back to Earth could solve the world's energy crisis. Who will win what has been dubbed the second Moon race? And should we be exploiting the Moon's valuable resources at all?

  • S2007E06 Battle of the Brains

    • April 17, 2007
    • BBC Two

    Seven high-flyers are put through a series of tests to measure their intelligence Can you think of 100 different uses for a sock? How would you cope with glasses that turn everything upside down? What's your emotional intelligence? Can you create a work of art in ten minutes? Horizon takes seven people who are some of the highest flyers in their field - a musical prodigy, a quantum physicist, an artist, a dramatist, an RAF fighter pilot, a chess grandmaster and a Wall Street trader. Each is put through a series of tests to discover who is the most intelligent? The principle way that we measure intelligence, the IQ test, remains popular and convenient. Yet most psychologists agree that it only tells half the story... at most. Where they disagree is how to measure intelligence, for the simple reason that the experts still don't know exactly what it is.

  • S2007E07 Skyscraper Fire Fighters

    • April 24, 2007
    • BBC Two

    Could Professor Jose Torero's fire protection system have saved the Twin Towers? When a fire gets out of control in a skyscraper it tests fire fighters to their limits. Predicting how a fire is behaving high up in a building is almost impossible. The fire fighters who entered the Twin Towers on 11 September 2001 could only guess at what was happening almost 1000 feet above them. That fateful day brought about the death of 343 New York fire fighters. Jose Torero believes fire fighters need not be put in such danger and that new technology could have saved many of the 343 fire fighters who died doing their duty that day. He believes he could even have saved the Twin Towers. He has spent the last ten years developing a system that could change the way fires are fought forever. It's called Firegrid. It's a revolutionary approach to fire fighting that could save thousands of lives, giving man the upper hand on one of his oldest enemies.

  • S2007E08 The Six Billion Dollar Experiment

    • May 1, 2007
    • BBC Two

    Will the Large Hadron Collider finally reveal the elusive God particle? In the coming months the most complex scientific instrument ever built will be switched on. The Large Hadron Collider promises to recreate the conditions right after the Big Bang. By revisiting the beginning of time, scientists hope to unravel some of the deepest secrets of our Universe. Within these first few moments the building blocks of the Universe were created. The search for these fundamental particles has occupied scientists for decades but there remains one particle that has stubbornly refused to appear in any experiment. The Higgs Boson is so crucial to our understanding of the Universe that it has been dubbed the God particle. It explains how fundamental particles acquire mass, or as one scientist plainly states: "It is what makes stuff stuff..."

  • S2007E09 How to Commit the Perfect Murder

    • May 8, 2007
    • BBC Two

    Is it possible to use a knowledge of forensic science, not to catch a killer, but to commit a perfect murder? Modern forensic science should make it impossible to commit murder and get away with it. But how easy would it be to outfox the detectives? With the help of top forensic scientists, and real-life murder investigations, we explore whether it's possible to commit a perfect murder. The body is the most important piece of evidence in any murder. Pathologist Dr Richard Shepherd reveals the crucial clues that give away the secrets of a suspicious death. Dr Lee Goff can work out a time of death from just a few maggots on a corpse. To really understand the way a human decomposes he relies on experiments - and dead pigs make ideal human models. And what is the perfect murder weapon? Probably Agatha Christie's favourite - poison. It leaves no marks on the body, and the victim may not even realise what has happened until it's too late. But there still might not be a perfect murder. The world's most notorious poisoner - Harold Shipman - was eventually caught.

  • SPECIAL 0x45 Everest: Doctors in the Death Zone (1)

    • September 23, 2007

    This two-part special, Horizon documentary follows an extraordinary team of climbing doctors on an expedition like no other to make scientific history and experience the ultimate in mountaineering. From their tented laboratories pitched beside ice falls in minus 25-degree temperatures, this team of doctors are the guinea pigs, experimenting on themselves. In this hostile environment they are putting their own lives at risk in an attempt to rewrite our understanding of the human body and revolutionise the treatment of patients in intensive care. But near the summit of Everest they quickly realise that in the death zone the greatest challenge is just staying alive.

  • SPECIAL 0x46 Everest: Doctors in the Death Zone (2)

    • September 30, 2007

    The extraordinary expedition of climbing doctors reaches a tense conclusion as Horizon follows Dr Mike Grocott and his team as they attempt to reach the summit of Everest and measure the amount of oxygen in their blood. The doctors findings could rewrite our understanding of the human body and help save the lives of critically ill patients in intensive care. Their greatest goal is to discover a genetic link that allows some to survive low oxygen when others die. But to do this they must go to the extreme. Standing 8850m in the sky, Everest is in the 'death zone' and by climbing into this hostile environment they will be putting their own lives on the line.

Season 2008

  • S2008E01 How to Kill a Human Being

    • January 15, 2008
    • BBC Two

    Michael Portillo looks at the science behind executions. Former Conservative MP, Michael Portillo pushes his body to the brink of death in an investigation into the science of execution. As the American Supreme Court examines whether the lethal injection is causing prisoners to die in unnecessary pain Michael sets out to find a solution which is fundamentally humane. To do so he examines the key methods of execution available today: he discovers why convicts can catch on fire in the electric chair, learns how easy it is to botch a hanging and inhales a noxious gas to experience first hand the terror of the gas chamber. Armed with some startling evidence Michael considers a completely new approach. Will it be the answer? There is only one way of finding out - to experience it himself.

  • S2008E02 Total Isolation

    • January 22, 2008
    • BBC Two

    Psychologists subject six volunteers to a world without stimulation. For the first time in 40 years Horizon re-creates a controversial sensory deprivation experiment. Six ordinary people are taken to a nuclear bunker and left alone for 48 hours. Three subjects are left alone in dark, sound-proofed rooms, while the other three are given goggles and foam cuffs, while white noise is piped into their ears. The original experiments carried out in the 1950s and 60s by leading psychologist Prof Donald Hebb, was thought by many in the North American political and scientific establishment to be too cruel and were discontinued. Prof Ian Robbins, head of trauma psychology at St George's Hospital, Tooting, has been treating some of the British Guantanamo detainees and the victims of torture who come to the UK from across the world. Now he evaluates the volunteers as their brains undergo strange alterations.

  • S2008E03 What on Earth is Wrong With Gravity?

    • January 29, 2008
    • BBC Two

    Dr Brian Cox wants to know why the Universe is built the way it is. Particle physicist and ex D:Ream keyboard player Dr Brian Cox wants to know why the Universe is built the way it is. He believes the answers lie in the force of gravity. But Newton thought gravity was powered by God, and even Einstein failed to completely solve it. Heading out with his film crew on a road trip across the USA, Brian fires lasers at the moon in Texas, goes mad in the desert in Arizona, encounters the bending of space and time at a maximum security military base, tries to detect ripples in our reality in the swamps of Louisiana and searches for hidden dimensions just outside Chicago.

  • S2008E04 Is Alcohol Worse than Ecstasy?

    • February 5, 2008
    • BBC Two

    A trip through the highs and lows of the UK’s 20 most dangerous drugs. Recent research has analysed the link between the harmful effects of drugs relative to their current classification by law with some startling conclusions. Perhaps most startling of all is that alcohol, solvents and tobacco (all unclassified drugs) are rated more dangerous than ecstasy, 4-MTA and LSD (all class A drugs). If the current ABC system is retained, alcohol would be rated a class A drug and tobacco class B. The scientists involved, including members of the government's top advisory committee on drug classification, have produced a rigorous assessment of the social and individual harm caused by 20 of the UK's most dangerous drugs and believe this should form the basis of future ranking. They think the current ABC system is arbitrary and not based on any scientific evidence. The drug policies have remained unchanged over the last 40 years so should they be reformed in the light of new research?

  • S2008E05 How to Make Better Decisions

    • February 12, 2008
    • BBC Two

    Lifting the lid on the business of human choices in an exclusive guide to making better decisions. We are bad at making decisions. According to science, our decisions are based on oversimplification, laziness and prejudice. And that's assuming that we haven't already been hijacked by our surroundings or led astray by our subconscious! Featuring exclusive footage of experiments that show how our choices can be confounded by temperature, warped by post-rationalisation and even manipulated by the future, Horizon presents a guide to better decision making, and introduces you to Mathematician Garth Sundem, who is convinced that conclusions can best be reached using simple maths and a pencil!

  • S2008E06 How to Live to be 101

    • February 19, 2008
    • BBC Two

    While scientists have been searching for the secrets of long life, a few isolated communities have stumbled across the answer. The quest to live longer has been one of humanities oldest dreams, but while scientists have been searching, a few isolated communities have stumbled across the answer. On the remote Japanese island of Okinawa, In the Californian town of Loma Linda and in the mountains of Sardinia people live longer than anywhere else on earth. In these unique communities a group of scientists have dedicated their lives to trying to uncover their secrets. Horizon takes a trip around the globe to meet the people who can show us all how to live longer, healthier lives.

  • S2008E07 Prof. Regan's Supermarket Secrets

    • February 26, 2008
    • BBC Two

    Friendly bacteria, superfoods, cholesterol busting spreads, 99% germ free, whiter than white...it's almost impossible to find a product in the supermarket today that doesn't come with impressive claims...a scientific claims, but do they actually do what they say? Are they worth the price? Are they worth a place in Prof. Regan's shopping trolly?

  • S2008E08 Are we Alone in the Universe?

    • March 4, 2008
    • BBC Two

    Use the Drake equation to calculate the number of civilisations in our galaxy. For fifty years, the Search for Extra Terrestrial Intelligence has been scanning the galaxy for a message from an alien civilisation. So far to no avail, but a recent breakthrough suggests they may one day succeed. Horizon joins the planet hunters who've discovered a new world called Gliese 581 c. It is the most Earth-like planet yet found around another star and may have habitats capable of supporting life. NASA too hopes to find fifty more Earth-like planets by the end of the decade, all of which dramatically increases the chance that alien life has begun elsewhere in the galaxy.

  • S2008E09 How Much is Your Dead Body Worth?

    • March 18, 2008
    • BBC Two

    Horizon investigates the medical revolution that has created an almost insatiable demand for body parts . When veteran broadcaster Alistair Cooke died in 2004 few suspected that he was yet to uncover his greatest story. What happened to his body as it lay in a funeral home would reveal a story of modern day grave robbery and helped smash a body-snatching ring that had made millions of dollars by chopping up and selling-off over 1000 bodies. Dead bodies have become big business. Each year millions of people's lives are improved by the use of tissue from the dead. Bodies are used to supply spare parts, and for surgeons to practice on. Horizon investigates the medical revolution that has created an almost insatiable demand for body parts and uncovers the growing industry and grisly black market that supplies human bodies for a price.

  • S2008E10 How Does Your Memory Work?

    • March 25, 2008
    • BBC Two

    Horizon journeys into the human memory, from how it emerges in childhood, develops through to adulthood, and fades in middle age. You might think that your memory is there to help you remember facts, such as birthdays or shopping lists. If so, you would be very wrong. The ability to travel back in time in your mind is, perhaps, your most remarkable ability, and develops over your lifespan. Horizon takes viewers on an extraordinary journey into the human memory. From the woman who is having her most traumatic memories wiped by a pill, to the man with no memory, this film reveals how these remarkable human stories are transforming our understanding of this unique human ability. The findings reveal the startling truth that everyone is little more than their own memory.

  • SPECIAL 0x50 Lost Horizons: The Big Bang

    • September 4, 2008
    • BBC Two

    Professor Jim Al Khalili delves into over 50 years of the BBC science archive to tell the story behind the emergence of one of the greatest theories of modern science, the Big Bang. The remarkable idea that our universe simply began from nothing has not always been accepted with the conviction it is today and, from fiercely disputed leftfield beginnings, took the best part of the 20th century to emerge as the triumphant explanation of how the universe began. Using curious horn-shaped antennas, U-2 spy planes, satellites and particle accelerators, scientists have slowly pieced together the cosmological jigsaw, and this documentary charts the overwhelming evidence for a universe created by a Big Bang.

  • SPECIAL 0x51 The Big Bang Machine

    • September 4, 2008
    • BBC Two

    The Large Hadron Collider, constructed in tunnels below Geneva, is the world's largest particle accelerator. Scientists using the LHC will recreate conditions less than a billionth of a second after the Big Bang.

  • S2008E11 The President's Guide to Science

    • September 16, 2008
    • BBC Two

    Horizon asks some of the biggest names in science to have a quiet word with the new American president. The United States president is quite simply the most powerful man on earth, but past presidents have often known little about science. That is a problem when the decisions they make will affect every one of us, from nuclear proliferation to climate change. To help the new president get to grips with this intimidating responsibility, some of the world's leading scientists, from Dawkins to Watson, share some crucial words of advice.

  • S2008E12 How Mad Are You? (1 of 2)

    • November 11, 2008
    • BBC Two

    First of a two-part special. Ten volunteers have come together for an extraordinary test. Five are 'normal' and the other five have been officially diagnosed as mentally ill. Horizon asks if you can tell who is who, and considers where the line between sanity and madness lies.

  • S2008E13 How Mad Are You? (2 of 2)

    • November 18, 2008
    • BBC Two

    Second part of the special documentary considering where the line between sanity and madness lies as ten volunteers come together for an extraordinary test. With five 'normal' volunteers and five who have been officially diagnosed as mentally ill, Horizon asks if you can tell who is who.

  • S2008E14 Jimmy's GM Food Fight

    • November 25, 2008
    • BBC Two

    Jimmy Doherty, pig farmer, one-time scientist and poster-boy for sustainable food production is on a mission to find out if GM crops really can feed the world. We need to double the amount of food we produce in the next fifty years to feed the world's growing population. Are GM crops the answer? Or are they a dangerous Frankenstein technology that could start an environmental catastrophe? To find the answers Jimmy is on a journey that will take him from the vast soya plantations of Argentina to the traditional Amish farms of Pennsylvania; and from the cutting-edge technology of the GM laboratories to the banana plantations of Uganda.

  • S2008E15 Do You Know What Time It Is?

    • December 2, 2008
    • BBC Two

    Particle physicist Professor Brian Cox asks, 'What time is it?' It's a simple question and it sounds like it has a simple answer. But do we really know what it is that we're asking? Brian visits the ancient Mayan pyramids in Mexico where the Maya built temples to time. He finds out that a day is never 24 hours and meets Earth's very own Director of Time. He journeys to the beginning of time, and goes beyond within the realms of string theory, and explores the very limit of time. He discovers that we not only travel through time at the speed of light, but the experience we feel as the passing of time could be an illusion.

  • S2008E16 Allergy Planet

    • December 9, 2008
    • BBC Two

    We are in the grip of an allergy epidemic. Fifty years ago one in 30 were affected, but in Britain today it is closer to one in three. Why this should be is one of modern medicine's greatest puzzles. In search of answers, Horizon travels round the globe, from the remotest inhabited island to the polluted centres of California and the UK. We meet sufferers and the scientists who have dedicated their lives trying to answer the mystery of why we are becoming allergic to our world.

  • S2008E17 Where's My Robot?

    • December 16, 2008
    • BBC Two

    Danny Wallace really wants a robot. He wants it to walk like him and talk like him. It's what scientists have been promising us for generations but it's a promise so far unfulfilled. Danny circumnavigates the globe searching for robot nirvana, trying to uncover how far away his dream is. He discovers that the robotics world is as weird as it is insanely complicated. During his quest he meets a Japanese man who makes copies of himself and his daughter, an Italian who claims he's found the key to human intelligence in a video game and a Singaporean whose unpromising-looking homage to Dusty Bin might just turn out to be the robot of Danny's dreams.

Season 2009

  • S2009E01 Why Are Thin People Not Fat?

    • January 26, 2009
    • BBC Two

    The world is affected by an obesity epidemic, but why is it that not everyone is succumbing? Medical science has been obsessed with this subject and is coming up with some unexpected answers. As it turns out, it is not all about exercise and diet. At the centre of this programme is a controversial overeating experiment that aims to identify exactly what it is about some people that makes it hard for them to bulk up.

  • S2009E02 Cannabis: The Evil Weed?

    • February 3, 2009
    • BBC Two

    Cannabis is the world's favourite drug, but also one of the least understood. Can cannabis cause schizophrenia? Is it addictive? Can it lead you on to harder drugs? Or is it simply a herb, an undervalued medicine? Addiction specialist Dr John Marsden discovers that modern science is finally beginning to find answers to these questions. John traces the cannabis plants' birthplace in Kazakhstan; finds the origins of our sensitivity to cannabis in the simple sea squirt; and finds out just what it does to our brains. He meets people who have been changed by this drug in drastically different ways - from those whose lives have been shattered to those who lives have been revived.

  • S2009E03 Why Do We Dream?

    • February 10, 2009
    • BBC Two

    Horizon uncovers the secret world of our dreams. In a series of cutting-edge experiments and personal stories, we go in search of the science behind this most enduring mystery and ask: where do dreams come from? Do they have meaning? And ultimately, why do we dream? What the film reveals is that much of what we thought we knew no longer stands true. Dreams are not simply wild imaginings but play a significant part in all our lives as they have an impact on our memories, the ability to learn, and our mental health. Most surprisingly, we find nightmares, too, are beneficial and may even explain the survival of our species.

  • S2009E04 Can We Make a Star on Earth?

    • February 17, 2009
    • BBC Two

    Professor Brian Cox takes a global journey in search of the energy source of the future. Called nuclear fusion, it is the process that fuels the sun and every other star in the universe. Yet despite over five decades of effort, scientists have been unable to get even a single watt of fusion electricity onto the grid. Brian returns to Horizon to find out why. Granted extraordinary access to the biggest and most ambitious fusion experiments on the planet, Brian travels to the USA to see a high security fusion bomb testing facility in action and is given a tour of the world's most powerful laser. In South Korea, he clambers inside the reaction chamber of K-Star, the world's first super-cooled, super-conducting fusion reactor where the fate of future fusion research will be decided.

  • S2009E05 The Secret Life of Your Bodyclock

    • February 24, 2009
    • BBC Two

    Why are you more likely to have a heart attack at eight o'clock in the morning or crash your car on the motorway at two o'clock in the afternoon? Can taking your medication at the right time of day really save your life? And have you ever wondered why teenagers will not get out of bed in the morning? The answers to these questions lie in the secret world of the biological clock.

  • S2009E06 What's the Problem with Nudity?

    • March 3, 2009
    • BBC Two

    What is wrong with nudity? Why are people embarrassed about their bodies? How and why did they get the way they are? Horizon takes a group of volunteers and subjects them to a series of psychological and physical tests to challenge attitudes to the naked human form. The questions raised strike at the heart of human physical and social evolution. Human beings are the only creatures that can be 'naked' - but why, how and when did people lose their fur? That question takes Horizon around the world to meet scientists from Africa to Florida, and they are finding answers in unexpected places: the chest hair of Finnish students, the genetic history of lice, and the sweat of an unusual monkey. It turns out that something everyone takes for granted may hold the key to the success of the entire human species.

  • S2009E07 How to Survive a Disaster

    • March 10, 2009
    • BBC Two

    When disaster strikes who lives and who dies is not purely a matter of luck. In every disaster, from those people face once in a lifetime, to those they face every day, there are things that can be done to increase the chances of getting out alive. Horizon has gathered a team of leading experts to produce the ultimate guide to disaster survival. Through controversial experiments, computer simulations and analysis of hundreds of survivor testimonies from plane crashes to ferry disasters and even 9/11, they will reveal what happens in the mind in the moment of crisis and how the human brain can be programmed for survival.

  • S2009E08 Who Do You Want Your Child to Be?

    • March 17, 2009
    • BBC Two

    David Baddiel, father of two, sets out to answer one of the greatest questions a parent can ask: how best to educate your child. Taking in the latest scientific research, David uncovers some unconventional approaches: from the parent hot-hosing his child to record-breaking feats of maths, to a school that pays hard cash for good grades. David witnesses a ground-breaking experiment that suggests a child's destiny can be predicted at four, and hears the three little words that can ruin a child's chance of success for good. He also uncovers the neurological basis for why teenagers can be stroppy and explosive and has his own brain tinkered with to experience what it is like to struggle at school. Through it all, David's quest remains true: to maximise his child's potential for success and happiness.

  • S2009E09 Why Can't We Predict Earthquakes?

    • March 24, 2009
    • BBC Two

    Last century, earthquakes killed over one million, and it is predicted that this century might see ten times as many deaths. Yet when an earthquake strikes, it always takes people by surprise. So why hasn't science worked out how to predict when and where the next big quake is going to happen? This is the story of the men and women who chase earthquakes and try to understand this mysterious force of nature. Journeying to China's Sichuan Province, which still lies devastated by the earthquake that struck in May 2008, as well as the notorious San Andreas Fault in California, Horizon asks why science has so far fallen short of answering this fundamental question.

  • S2009E10 Alan and Marcus Go Forth and Multiply

    • March 31, 2009
    • BBC Two

    Ever since he was at school, actor and comedian Alan Davies has hated maths. And like many people, he is not much good at it either. But Alan has always had a sneaking suspicion that he was missing out. So, with the help of top mathematician Professor Marcus du Sautoy, Alan is going to embark on a maths odyssey. Together they visit the fourth dimension, cross the universe and explore the concept of infinity. Along the way, Alan does battle with some of the toughest maths questions of our age. But did his abilities peak 25 years ago when he got his grade C O-Level? Or will Alan be able to master the most complex maths concept there is?

  • S2009E11 How Violent Are You?

    • May 12, 2009
    • BBC Two

    What makes ordinary people commit extreme acts of violence? Michael Portillo investigates the dark side of human nature, and discovers what it is like to inflict pain.

  • SPECIAL 0x47 The Horizon Guide to Pandemic

    • August 9, 2009
    • BBC Two

    In the wake of the swine flu outbreak, virologist Dr Mike Leahy goes back over 50 years of BBC archives to explore the history of pandemics: waves of infectious diseases caused by bacteria, viruses or parasites. Inspired primarily by the Horizon back catalogue, he works his way through the diseases that have been tackled head-on through the 20th Century: polio, malaria, smallpox, AIDS, and up to the present day with SARS and the H5N1 bird-flu virus. Each pandemic episode tells us something about the world and our place within it. In his trip through the ages and the archives, Dr Leahy charts science's ongoing battle with nature and questions which one is winning. He makes a reasonable fist of the exercise, but is somewhat up against it as his source material can be patchy - first triumphant about man's successes and then defeatist when the previous triumph didn't work out quite as planned, etc.

  • SPECIAL 0x58 40 Years On The Moon

    • July 9, 2009
    • BBC Four

    Professor Brian Cox takes a look through nearly 50 years of BBC archive at the story of man's relationship with the moon. From the BBC's space fanatic James Burke testing out the latest Nasa equipment to 1960s interviews about the bacon-flavoured crystals that astronauts can survive on in space, to the iconic images of man's first steps on the moon and the dramatic story of Apollo 13, Horizon and the BBC have covered it all. But since President Kennedy's goal of landing a man on the moon before the end of the 1960s was reached, no-one has succeeded in reigniting the public's enthusiasm for space travel and lunar voyages. Why? On his journey through the ages, Professor Cox explores the role that international competition played in getting man to the moon and asks if, with America no longer the world's only superpower, we are at the dawn of a bright new space age.

  • S2009E12 Do I Drink Too Much?

    • October 13, 2009
    • BBC Two

    Do I Drink Too Much? Alcohol is by far the most widely used drug - and a dangerous one at that. So why are so many of us drinking over the recommended limits? Why does alcohol have such a powerful grip on us? How much of our relationship with this drug is written in our genes? What are the real dangers of our children drinking too young? Addiction expert John Marsden, who likes a drink, makes a professional and personal exploration of our relationship with alcohol. He undergoes physical and neurological examinations to determine its impact, and finds out why some people will find it much harder than others to resist alcohol. Even at the age of 14 there may be a way of determining which healthy children will turn into addicts. John experiments with a designer drug being developed that hopes to replicate all the benefits of alcohol without the dangers. Could this drug replace alcohol in the future?

  • S2009E13 The Secret You

    • October 20, 2009
    • BBC Two

    With the help of a hammer-wielding scientist, Jennifer Aniston and a general anaesthetic, Professor Marcus du Sautoy goes in search of answers to one of science's greatest mysteries: how do we know who we are? While the thoughts that make us feel as though we know ourselves are easy to experience, they are notoriously difficult to explain. So, in order to find out where they come from, Marcus subjects himself to a series of probing experiments. He learns at what age our self-awareness emerges and whether other species share this trait. Next, he has his mind scrambled by a cutting-edge experiment in anaesthesia. Having survived that ordeal, Marcus is given an out-of-body experience in a bid to locate his true self. And in Hollywood, he learns how celebrities are helping scientists understand the microscopic activities of our brain. Finally, he takes part in a mind-reading experiment that both helps explain and radically alters his understanding of who he is.

  • S2009E14 Fix Me

    • October 27, 2009
    • BBC Two

    Horizon follows the emotional journey of three young people with currently untreatable conditions to see if, within their lifetime, they can be cured. Sophie Morgan is determined not to spend the rest of her life in a wheelchair. She is tempted by the online claims of unregulated private clinics promising a cure using stem cells. To help her decide if she should go for treatment, she meets another paraplegic, Chris Oberle, who spent his life savings visiting an Indian clinic. She also visits Geron, the Californian clinic set to hold the first human trials using embryonic stem cells. A lot rests on the trial; if successful, it could mean treatment much sooner for Sophie and lead to cures for a range of untreatable conditions. Anthony Bath was just 20 when his right leg was amputated. A botched pinning procedure led to an MRSA infection and, after 18 operations, the loss of his leg. Although he has continued to achieve great things on the sporting front, running marathons and sailing around the world, he would still love to have his leg back. In Finland, Anthony witnesses one of the world's first operations in which stem cells are used to replace bone. If the procedure had been available a few years ago, his leg could have been saved. When Dean Third collapsed, he was diagnosed with dilated cardiomyopathy, a condition in which his damaged heart could cause his death at any moment. His condition is stabilised by medication, but each of his children carries a 50 per cent chance of developing symptoms, too. Desperate for a cure, he visits Dr Anthony Mathur from University College London in his operating theatre to witness the world's first trial using stem cells taken from bone marrow. They are then injected directly into the muscles of the heart with the aim of regenerating the damaged heart cells. For Sophie, Anthony and Dean, this pioneering research could mean the difference between the life they are forced to lead and the life they dream of. Throug

  • S2009E15 Who's Afraid of a Big Black Hole?

    • November 3, 2009
    • BBC Two

    Black holes are one of the most destructive forces in the universe, capable of tearing a planet apart and swallowing an entire star. Yet scientists now believe they could hold the key to answering the ultimate question - what was there before the Big Bang? The trouble is that researching them is next to impossible. Black holes are by definition invisible and there's no scientific theory able to explain them. Despite these obvious obstacles, Horizon meets the astronomers attempting to image a black hole for the very first time and the theoretical physicists getting ever closer to unlocking their mysteries. It's a story that takes us into the heart of a black hole and to the very edge of what we think we know about the universe.

  • S2009E16 Why Do We Talk?

    • November 10, 2009
    • BBC Two

    Talking is something that is unique to humans, yet it still remains a mystery. Horizon meets the scientists beginning to unlock the secrets of speech - including a father who is filming every second of his son's first three years in order to discover how we learn to talk, the autistic savant who can speak more than 20 languages, and the first scientist to identify a gene that makes speech possible. Horizon also hears from the godfather of linguistics, Noam Chomsky, the first to suggest that our ability to talk is innate. A unique experiment shows how a new alien language can emerge in just one afternoon, in a bid to understand where language comes from and why it is the way it is.

  • SPECIAL 0x48 Mars: A Horizon Guide

    • November 15, 2009
    • BBC Two

    The intriguing possibility of life on Mars has fuelled man's quest to visit the Red Planet. Drawing on 45 years of Horizon archive, space expert Dr Kevin Fong presents a documentary on Earth's near neighbour. Man's extraordinary attempts to reach Mars have pushed technological boundaries past their limit and raised the tantalising prospect of establishing human colonies beyond our own planet. While the moon lies 240,000 miles away, Mars is at a distance of 50 million miles. Reaching the moon takes three days, but to land on Mars would take nearly eight months, and only two thirds of the missions to Mars have made it. The BBC has been there to analyse the highs and lows - including the ill-fated British attempt, the Beagle. Horizon has explored how scientists believe the only way to truly understand Mars is to send people there. If and when we do, it will be the most challenging trip humanity has ever undertaken.

  • S2009E17 How Long is a Piece of String?

    • November 17, 2009
    • BBC Two

    Alan Davies attempts to answer the proverbial question: how long is a piece of string? But what appears to be a simple task soon turns into a mind-bending voyage of discovery where nothing is as it seems. An encounter with leading mathematician Marcus du Sautoy reveals that Alan's short length of string may in fact be infinitely long. When Alan attempts to measure his string at the atomic scale, events take an even stranger turn. Not only do objects appear in many places at once, but reality itself seems to be an illusion. Ultimately, Alan finds that measuring his piece of string could - in theory at least - create a black hole, bringing about the end of the world.

  • S2009E18 How Many People Can Live on Planet Earth?

    • December 9, 2009
    • BBC Two

    In a Horizon special, naturalist Sir David Attenborough investigates whether the world is heading for a population crisis. In his lengthy career, Sir David has watched the human population more than double from 2.5 billion in 1950 to nearly seven billion. He reflects on the profound effects of this rapid growth, both on humans and the environment. While much of the projected growth in human population is likely to come from the developing world, it is the lifestyle enjoyed by many in the West that has the most impact on the planet. Some experts claim that in the UK consumers use as much as two and a half times their fair share of Earth's resources. Sir David examines whether it is the duty of individuals to commit not only to smaller families, but to change the way they live for the sake of humanity and planet Earth.

Season 2010

  • S2010E01 The Secret Life of the Dog

    • January 6, 2010
    • BBC Two

    We have an extraordinary relationship with dogs - closer than with any other animal on the planet. But what makes the bond between us so special? Research into dogs is gaining momentum, and scientists are investigating them like never before. From the latest fossil evidence, to the sequencing of the canine genome, to cognitive experiments, dogs are fast turning into the new chimps as a window into understanding ourselves. Where does this relationship come from? In Siberia, a unique breeding experiment reveals the astonishing secret of how dogs evolved from wolves. Swedish scientists demonstrate how the human/dog bond is controlled by a powerful hormone also responsible for bonding mothers to their babies. Why are dogs so good at reading our emotions? Horizon meets Betsy, the world's most intelligent dog, and compares her incredible abilities to those of children. Man's best friend has recently gone one step further - helping us identify genes responsible for causing human diseases.

  • SPECIAL 0x52 Diet: A Horizon Guide

    • January 7, 2010
    • BBC Two

    Dr Susan Jebb takes a look through nearly fifty years of amazing BBC archive of mankind's relationship with what we eat, charting the shift from the malnutrition of the past to today's obesity epidemic. This is the story of our attempt to control nature through the wholesale industrialisation of food production in our search for enough to eat, and the consequences of that massive shift in our diet on the shape of our bodies, and the diseases that kill us. From the BBC's original eccentric scientist Magnus Pyke comparing the virtues of artificial additives to a Beethoven sonata, to the tragic side effects of diet pills, Horizon and the BBC have covered it all. On her journey through the decades, Dr Jebb explores how scientists have played a crucial role both in transforming the way our food is produced, but also in attempting to understand the biological mechanisms that determine why it is that some of us have become so large.

  • S2010E02 Why Do Viruses Kill?

    • January 13, 2010
    • BBC Two

    Just months ago, the world stood in fear of an emerging new disease that threatened to kill millions. A new flu variant H1N1 had arrived. In the UK alone, 65,000 deaths were predicted. Yet to date, these dire warnings have not materialised. If this latest pandemic has taught anything, it is just how little is understood about the invisible world of viruses. But that has not stopped scientists trying. Horizon follows the leading researchers from across the world, who are attempting to unravel the many secrets of viruses to understand when and why they kill.

  • S2010E03 Pill Poppers

    • January 20, 2010
    • BBC Two

    Over a person's lifetime they are likely to be prescribed more than 14,000 pills. Antibiotics, cholesterol lowering tablets, anti-depressants, painkillers, even tablets to extend youth and improve performance in bed. These drugs perform minor miracles day after day, but how much is really known about them? Drug discovery often owes as much to serendipity as to science, and that means much is learnt about how medicines work, or even what they do, when they're taken. By investigating some of the most popular pills people pop, Horizon asks, how much can they be trusted to do what they are supposed to?

  • S2010E04 Don't Grow Old

    • February 3, 2010
    • BBC Two

    For centuries scientists have been attempting to come up with an elixir of youth. Now remarkable discoveries are suggesting that ageing is something flexible that can ultimately be manipulated. Horizon meets the scientists who are attempting to piece together why we age and more vitally for all of us, what we can do to prevent it. But which theory will prevail? Does the 95-year-old woman who smokes two packets of cigarettes a day hold the clue? Do blueberries really delay signs of ageing or is it more a question of attitude? Does the real key to controlling how we age lie with a five-year-old boy with an extraordinary ageing disease or with a self-experimenting Harvard professor? Could one of these breakthroughs really see our lives extend past 120 years?

  • S2010E05 To Infinity and Beyond

    • February 10, 2010
    • BBC Two

    By our third year, most of us will have learned to count. Once we know how, it seems as if there would be nothing to stop us counting forever. But, while infinity might seem like an perfectly innocent idea, keep counting and you enter a paradoxical world where nothing is as it seems. Mathematicians have discovered there are infinitely many infinities, each one infinitely bigger than the last. And if the universe goes on forever, the consequences are even more bizarre. In an infinite universe, there are infinitely many copies of the Earth and infinitely many copies of you. Older than time, bigger than the universe and stranger than fiction. This is the story of infinity.

  • S2010E06 What Makes a Genius?

    • February 17, 2010
    • BBC Two

    Could you have come up with Einstein's theory of relativity? If not - why not? This is what Marcus du Sautoy, professor of mathematics, wants to explore. Marcus readily admits that he is no genius, but wants to know if geniuses are just an extreme version of himself - or whether their brains are fundamentally different. Marcus meets some remarkable individuals - Tommy, an obsessive artist who uses his whole house as his canvas; Derek: blind, autistic, and a pianist with apparently prodigious gifts; Claire who is also blind, but whose brain has learnt to see using sound. Marcus is shown how babies have remarkable abilities which most of us lose as teenagers. He meets a neuroscientist who claims he has evidence of innate ability, a scientist who's identified a gene for learning, and Dr. Paulus, who has discovered how to sharpen the brain... by electrically turbo-charging it.

  • S2010E07 Did Cooking Make Us Human?

    • March 2, 2010
    • BBC Two

    Horizon examines the evidence that our ancestors' changing diet and mastery of fire prompted anatomical and neurological changes that took us out of the trees and into the kitchen.

  • S2010E08 Is Everything We Know About the Universe Wrong?

    • March 9, 2010
    • BBC Two

    There's something very odd going on in space - something that shouldn't be possible. It is as though vast swathes of the universe are being hoovered up by a vast and unseen celestial vacuum cleaner. Sasha Kaslinsky, the scientist who discovered the phenomenon, is understandably nervous: 'It left us quite unsettled and jittery' he says, 'because this is not something we planned to find'. The accidental discovery of what is ominously being called 'dark flow' not only has implications for the destinies of large numbers of galaxies - it also means that large numbers of scientists might have to find a new way of understanding the universe. Dark flow is the latest in a long line of phenomena that have threatened to rewrite the textbooks. Does it herald a new era of understanding, or does it simply mean that everything we know about the universe is wrong?

  • SPECIAL 0x53 The End of God? A Horizon Guide to Science and Religion

    • September 17, 2010
    • BBC Two

    As the Pope ends his visit to Britain, historian Dr Thomas Dixon delves into the BBC's archive to explore the troubled relationship between religion and science. From the creationists of America to the physicists of the Large Hadron Collider, he traces the expansion of scientific knowledge and asks whether there is still room for God in the modern world.

  • S2010E09 Back from the Dead

    • September 27, 2010
    • BBC Two

    Dr Kevin Fong investigates a technique that is used to bring people back from the dead.

  • S2010E10 The Death of the Oceans

    • October 4, 2010
    • BBC Two

    Sir David Attenborough reveals the findings of one of the most ambitious scientific studies of our time - an investigation into what is happening to our oceans. He looks at whether it is too late to save their remarkable biodiversity. Horizon travels from the cold waters of the North Atlantic to the tropical waters of the Great Barrier Reef to meet the scientists who are transforming our understanding of this unique habitat. Attenborough explores some of the ways in which we are affecting marine life - from over-fishing to the acidification of sea water. The film also uncovers the disturbing story of how shipping noise is deafening whales and dolphins, affecting their survival in the future.

  • S2010E11 What Happened Before the Big Bang?

    • October 11, 2010
    • BBC Two

    They are the biggest questions that science can possibly ask: where did everything in our universe come from? How did it all begin? For nearly a hundred years, we thought we had the answer: a big bang some 14 billion years ago. But now some scientists believe that was not really the beginning. Our universe may have had a life before this violent moment of creation. Horizon takes the ultimate trip into the unknown, to explore a dizzying world of cosmic bounces, rips and multiple universes, and finds out what happened before the big bang.

  • S2010E12 Is Seeing Believing?

    • October 18, 2010
    • BBC Two

    Horizon explores the strange and wonderful world of illusions - and reveals the tricks they play on our senses and why they fool us. We show how easy it is to trick your sense of taste by changing the colours of food and drink, explain how what you see can change what you hear, and see just how unreliable our sense of colour can be. But all this trickery has a serious purpose. It's helping scientists to create a new understanding of how our senses work - not as individual senses, but connected together.

  • S2010E13 Miracle Cure? A Decade of the Human Genome

    • October 25, 2010
    • BBC Two

    A decade ago, scientists announced that they had produced the first draft of the human genome, the 3.6 billion letters of our genetic code. It was seen as one of the greatest scientific achievements of our age, a breakthrough that would usher in a new age of medicine. A decade later, Horizon finds out how close we are to developing the life-changing treatments that were hoped for.

  • S2010E14 Asteroids: The Good, the Bad and the Ugly

    • November 3, 2010
    • BBC Two

    Famed for their ability to inflict Armageddon from outer space, asteroids are now revealing the secrets of how they are responsible for both life and death on our planet.

  • S2010E15 Deepwater Disaster: The Untold Story

    • November 16, 2010
    • BBC Two

    Horizon reveals the untold story of the 87-day battle to kill the Deepwater Horizon oil blowout a mile beneath the waves - a crisis that became America's worst environmental disaster. Engineers and oil men at the heart of the operation talk for the first time about the colossal engineering challenges they faced and how they had to improvise under extreme pressure. They tell of how they used household junk, discarded steel boxes and giant underwater cutting shears to stop the oil. It's an operation that one insider likens to the rescue of Apollo 13.

Season 2011

  • SPECIAL 0x54 What Makes Us Clever? A Horizon Guide to Intelligence

    • January 6, 2011
    • BBC Two

    Dallas Campbell delves into the Horizon archive to discover how our understanding of intelligence has transformed over the last century. From early caveman thinkers to computers doing the thinking for us, he discovers the best ways of testing how clever we are - and enhancing it.

  • S2011E01 What is One Degree?

    • January 10, 2011
    • BBC Two

    Comedian Ben Miller returns to his roots as a physicist to try to answer a deceptively simple question: what is one degree of temperature? His quest takes him to the frontiers of current science as he meets researchers working on the hottest and coldest temperatures in the universe, and to a lab where he experiences some of the strangest effects of quantum physics - a place where super-cooled liquids simply pass through solid glass. Plus, Ben installs his very own Met office weather station at home. Ben's investigations in this personal and passionate film highlight the importance of measurement and accuracy in the 21st century.

  • S2011E02 What is Reality?

    • January 17, 2011
    • BBC Two

    There is a strange and mysterious world that surrounds us, a world largely hidden from our senses. The quest to explain the true nature of reality is one of the great scientific detective stories. Clues have been pieced together from deep within the atom, from the event horizon of black holes, and from the far reaches of the cosmos. It may be that that we are part of a cosmic hologram, projected from the edge of the universe. Or that we exist in an infinity of parallel worlds. Your reality may never look quite the same again.

  • S2011E03 Science Under Attack

    • January 24, 2011
    • BBC Two

    Nobel Prize winner Sir Paul Nurse examines why science appears to be under attack, and why public trust in key scientific theories has been eroded - from the theory that man-made climate change is warming our planet, to the safety of GM food, or that HIV causes AIDS. He interviews scientists and campaigners from both sides of the climate change debate, and travels to New York to meet Tony, who has HIV but doesn't believe that that the virus is responsible for AIDS. This is a passionate defence of the importance of scientific evidence and the power of experiment, and a look at what scientists themselves need to do to earn trust in controversial areas of science in the 21st century.

  • S2011E04 The Secret World of Pain

    • January 31, 2011
    • BBC Two

    Horizon reveals the latest research into one of the most mysterious and common human experiences - pain. Breakthroughs have come from studying a remarkable woman in London who has felt no pain at all in her life, a man in the US who cut off his own arm to survive, and three generations of an Italian family who don't feel extremes of temperature. We witness a new treatment that involves a pioneering computer game 'snow world' that contains the power to banish pain. And we find how powerfully our moods and emotions shape what pain we feel.

  • S2011E05 Surviving a Car Crash

    • February 7, 2011
    • BBC Two

    Horizon meets the scientists working to make fatal car crashes a thing of the past. A remarkable fusion of mechanical engineering and biology promises to save countless lives across the world. The programme has exclusive access to the secretive world of the most advanced car crash tests. Horizon reveals how the latest advances in trauma medicine, psychology and even extreme sport are transforming your chances of surviving on the roads. And the programme shows how researchers are creating a new virtual crash test dummy that could change how our cars are designed forever.

  • S2011E06 How to Mend a Broken Heart

    • February 14, 2011
    • BBC Two

    Dr Kevin Fong finds out how close scientists are to being able to mend your heart if it stops working. He meets some of the people who have undergone pioneering heart operations and the scientists who are pushing the limits of cardiac treatment. We meet a man who has had his heart replaced with an artificial one powered by a mechanical pump he carries around in a rucksack, and witness a scientist bring a dead animal heart back to life on a workbench. Plus, the work of an American scientist who is using stem cells to turn what she calls a 'ghost heart' - the scaffold of a heart - into a replacement heart for humans.

  • S2011E07 Are We Still Evolving?

    • March 1, 2011
    • BBC Two

    Dr Alice Roberts asks one of the great questions about our species: are we still evolving? There's no doubt that we're a product of millions of years of evolution. But thanks to modern technology and medicine, did we escape Darwin's law of the survival of the fittest? Alice follows a trail of clues from ancient human bones, to studies of remarkable people living in the most inhospitable parts of the planet, to the frontiers of genetic research to discover if we are still evolving - and where we might be heading.

  • S2011E08 Predators in Your Backyard

    • March 8, 2011
    • BBC Two

    Across the world scientists are releasing predators, nature's ultimate killers, close to where people live. In Florida, a new population of panthers, feared as ambush predators, have been released near to the busy town of Naples. In the Italian Alps, bears have been reintroduced after they became virtually extinct, and now try to get into people's homes in the middle of the night. And in Yellowstone National Park, wolves have been brought back 70 years after they were exterminated. Horizon meets the scientist behind this radical scheme, and the people who now have to share their backyards with these predators.

  • SPECIAL 0x55 Japan Earthquake: A Horizon Special

    • March 27, 2011
    • BBC Two

    Professor Iain Stewart examines the powerful geological forces that unleashed the devastating Japanese earthquake, and explores how the release of this power of the planet brought Japan to the brink of a nuclear meltdown. He follows moment by moment how the earthquake was generated under the Pacific Ocean, travelled to the Japanese mainland, and the rare conditions that unleashed a tsunami. He also reveals the latest science behind earthquakes - from why we can't predict them, to what causes some of them to reach such power. Iain shows why our civilisation has developed such a dangerous relationship with earthquakes, and why millions of us continue to live in earthquake zones across the world.

  • SPECIAL 0x56 The Horizon Guide to Space Shuttles

    • April 10, 2011
    • BBC Four

    In 2011, after more than 30 years of service, America's space shuttle took to the skies for the last time. Its story has been characterised by incredible triumphs, but blighted by devastating tragedies - and the BBC and Horizon have chronicled every step of its career. This unique and poignant Horizon Guide brings together coverage from three decades of programmes to present a biography of the shuttle and to ask what its legacy will be. Will it be remembered as an impressive chapter in human space exploration, or as a fatally flawed white elephant?

  • SPECIAL 0x57 The End of the World? A Horizon Guide to Armageddon

    • May 12, 2011
    • BBC Two

    Our understanding of the world around us is better now than ever before. But are we any closer to knowing how its all going to end? Dallas Campbell delves into the Horizon archive to discover how scientists have tried to predict an impending apocalypse - from natural disaster to killer disease to asteroid impact - and to ask: when Armageddon arrives, will science be able to save us?

  • S2011E09 Do You See What I See?

    • August 8, 2011
    • BBC Two

    Documentary exploring the impact of colours on people's lives, and how perceptions of them can be influenced by age, gender and mood. The programme examines scientists' claims that different hues have hidden powers, from the winning properties of red to how blue seemingly makes time speed up.

  • SPECIAL 0x59 Carrot or Stick? A Horizon Guide to Raising Kids

    • August 11, 2011
    • BBC Two

    Child psychologist Laverne Antrobus delves into the Horizon archive to find out how science has shaped our approach to parenting and education over the last fifty years. From lessons in motherly love to tough discipline to bribery tactics, she asks what's the best approach when it comes to bringing up children. Laverne also explores how extreme behaviour can sometimes be explained by underlying neurological problems and discovers whether children learn best in a more child-centred environment.

  • S2011E10 Seeing Stars

    • August 15, 2011
    • BBC Two

    Around the world, a new generation of astronomers are hunting for the most mysterious objects in the universe. Young stars, black holes, even other forms of life. They have created a dazzling new set of super-telescopes that promise to rewrite the story of the heavens. This film follows the men and women who are pushing the limits of science and engineering in some of the most extreme environments on earth. But most striking of all, no-one really knows what they will find out there.

  • S2011E11 The Nine Months That Made You

    • August 22, 2011
    • BBC Two

    Horizon explores the secrets of what makes a long, healthy and happy life. It turns out that a time you can't remember - the nine months you spend in the womb - could have more lasting effects on you today than your lifestyle or genes. It is one of the most powerful and provocative new ideas in human science, and it was pioneered by a British scientist, Professor David Barker. His theory has inspired a field of study that is revealing how our time in the womb could affect your health, personality, and even the lives of your children.

  • S2011E12 The Core

    • August 31, 2011
    • BBC Two

    For centuries we have dreamt of reaching the centre of the Earth. Now scientists are uncovering a bizarre and alien world that lies 4,000 miles beneath our feet, unlike anything we know on the surface. It is a planet buried within the planet we know, where storms rage within a sea of white-hot metal and a giant forest of crystals make up a metal core the size of the Moon. Horizon follows scientists who are conducting experiments to recreate this core within their own laboratories, with surprising results.

  • S2011E13 Are You Good or Evil?

    • September 7, 2011
    • BBC Two

    What makes us good or evil? It's a simple but deeply unsettling question. One that scientists are now starting to answer. Horizon meets the researchers who have studied some of the most terrifying people behind bars - psychopathic killers. But there was a shock in store for one of these scientists, Professor Jim Fallon, when he discovered that he had the profile of a psychopath. And the reason he didn't turn out to be a killer holds important lessons for all of us. We meet the scientist who believes he has found the moral molecule and the man who is using this new understanding to rewrite our ideas of crime and punishment.

  • S2011E14 Fukushima: Is Nuclear Power Safe?

    • September 14, 2011
    • BBC Two

    Six months after the explosions at the Fukushima nuclear plant and the release of radiation there, Professor Jim Al-Khalili sets out to discover whether nuclear power is safe. He begins in Japan, where he meets some of the tens of thousands of people who have been evacuated from the exclusion zone. He travels to an abandoned village just outside the zone to witness a nuclear clean-up operation. Jim draws on the latest scientific findings from Japan and from the previous explosion at Chernobyl to understand how dangerous the release of radiation is likely to be and what that means for our trust in nuclear power.

  • SPECIAL 0x60 Extinct: A Horizon Guide to Dinosaurs

    • September 21, 2011

    Dallas Campbell delves in to the Horizon archive to discover how our ideas about dinosaurs have changed over the past 40 years. From realising that lumbering swamp dwellers were really agile warm blooded killers, astonishing new finds, controversial theories and breakthrough technology have enabled scientists to rethink how they lived and solve the mystery of their disappearance. And they can even reveal whether dinosaurs might still be with us today.

Season 2012

  • SPECIAL 0x61 The Hunt for Higgs: A Horizon Special

    • January 9, 2012
    • BBC Two

    Horizon goes behind the scenes at CERN to follow one of the most epic and expensive scientific quests of all time: the search for the Higgs particle, believed to give mass to everything in our universe. However, the hunt for Higgs is part of a much grander search for how the universe works. It promises to help answer questions like why we exist and is a vital part of a Grand Unified Theory of nature. At the heart of the pursuit of the elusive particle is the same feature that makes snowflakes beautiful and human faces attractive: the simple and enchanting idea of symmetry.

  • S2012E01 Playing God

    • January 17, 2012
    • BBC Two

    Adam Rutherford meets a new creature created by American scientists, the spider-goat. It is part goat, part spider, and its milk can be used to create artificial spider's web. It is part of a new field of research, synthetic biology, with a radical aim: to break down nature into spare parts so that we can rebuild it however we please. This technology is already being used to make bio-diesel to power cars. Other researchers are looking at how we might, one day, control human emotions by sending 'biological machines' into our brains.

  • S2012E02 The Truth About Exercise

    • February 28, 2012
    • BBC Two

    Like many, Michael Mosley want to get fitter and healthier but can't face hours on the treadmill or trips to the gym. Help may be at hand. He uncovers the surprising new research which suggests many of us could benefit from just three minutes of high intensity exercise a week. He discovers the hidden power of simple activities like walking and fidgeting, and finds out why some of us don't respond to exercise at all Using himself as a guinea pig, Michael uncovers the surprising new research about exercise, that has the power to make us all live longer and healthier lives.

  • SPECIAL 0x62 Woof! A Horizon Guide to Dogs

    • March 1, 2012
    • BBC Two

    Dallas Campbell looks back through the Horizon archives to find out what science can tell us about our best friend the dog, and whether new thinking should change the way we treat them. From investigating the domestic dog's wild wolf origins to discovering the remarkable impact that humans have had on canine evolution, Dallas explores why our bond with dogs is so strong and how we can best use that to manage them.

  • S2012E03 Solar Storms: The Threat to Planet Earth

    • March 6, 2012
    • BBC Two

    Scientists are expecting a fit of violent activity on the sun which will propel billions of tonnes of superheated gas and pulses of energy towards our planet. They have the power to close down our modern technological civilization. Horizon meets the space weathermen who are trying to predict what's coming our way, and organistions like the National Grid which are preparing for the impending solar storms.

  • S2012E04 Out of Control?

    • March 13, 2012
    • BBC Two

    We all like to think we are in control of our lives - of what we feel and what we think. But scientists are now discovering this is often simply an illusion. Surprising experiments are revealing that what you think you do and what you actually do can be very different. Your unconscious mind is often calling the shots, influencing the decisions you make, from what you eat to who you fall in love with. If you think you are really in control of your life, you may have to think again.

  • S2012E05 The Truth about Fat

    • March 20, 2012
    • BBC Two

    Surgeon Gabriel Weston discovers the surprising truth about why so many people are piling on the pounds, and how to fight the fat epidemic. She discovers the hidden battles of hormones that control people's appetites, and sees the latest surgery that fundamentally changes what a patient wants to eat by altering how their brains work. Gabriel is shocked to find out that when it comes to being overweight, it is not always your fault you are fat.

  • S2012E06 Global Weirding

    • March 27, 2012
    • BBC Two

    Something weird seems to be happening to our weather - it appears to be getting more extreme. In the past few years we have shivered through two record-breaking cold winters and parts of the country have experienced intense droughts and torrential floods. It is a pattern that appears to be playing out across the globe. Hurricane chasers are recording bigger storms and in Texas, record-breaking rain has been followed by record-breaking drought. Horizon follows the scientists who are trying to understand what's been happening to our weather and investigates if these extremes are a taste of whats to come.

  • S2012E07 The Hunt for AI

    • April 3, 2012
    • BBC Two

    Marcus Du Sautoy wants to find out how close we are to creating machines that can think like us: robots or computers that have artificial intelligence. His journey takes him to a strange and bizarre world where AI is now taking shape. Marcus meets two robots who are developing their own private language, and attempts to communicate to them. He discovers how a super computer beat humans at one of the toughest quiz shows on the planet, Jeopardy. And finds out if machines can have creativity and intuition like us. Marcus is worried that if machines can think like us, then he will be out of business. But his conclusion is that AI machines may surprise us with their own distinct way of thinking.

  • SPECIAL 0x107 The Transit of Venus: A Horizon Special

    • June 5, 2012
    • BBC Two

    Liz Bonnin presents a Horizon special about a rare and beautiful event in our solar system, one that we should all be able to see for ourselves - the transit of Venus across the face of the sun. It will start just before midnight of the 5th of June, and won't happen again for more than a century. Liz is joined by Lucie Green and Helen Czerski to show why the transit is such a remarkable event - transforming our understanding of our own solar system as well as helping scientists hunt for alien life on distant planets, hundreds of light years away.

  • S2012E08 Defeating Cancer

    • April 10, 2012
    • BBC Two

    Over the past year, Horizon has been behind the scenes at one of Britain's leading cancer hospitals, the Royal Marsden in London. The film follows Rosemary, Phil and Ray as they undergo remarkable new treatments - from a billion pound genetically targeted drug designed to fight a type of skin cancer, to advanced robotic surgery. We witness the breakthroughs in surgery and in scientific research that are offering new hope and helping to defeat a disease that more than one in three of us will develop at some stage of our lives.

  • SPECIAL 0x64 Stuff: A Horizon Guide to Materials

    • April 19, 2012
    • BBC Two

    Engineer Jem Stansfield looks back through the Horizon archives to find out how scientists have come to understand and manipulate the materials that built the modern world. Whether it is uncovering new materials or finding fresh uses for those man has known about for centuries, each breakthrough offers a tantalising glimpse of the holy grail of materials science - a substance that is cheap to produce and has the potential to change the world. Jem explores how a series of extraordinary advances has done just that - from superconductors to the silicon revolution.

  • S2012E09 The Truth About Looking Young

    • July 23, 2012
    • BBC Two

    Plastic surgeon Dr Rozina Ali leaves the operating theatre behind for the frontiers of skin science and asks if it is possible to make your skin look younger without surgery. She discovers the latest research about how the foods we eat can protect our skin from damage, and how a chemical found in a squid's eye is at the forefront of a new sun protection cream. She also finds out how sugar in our blood can make us look older, and explores an exciting new science called glycobiology, which promises a breakthrough in making us look younger.

  • SPECIAL 0x66 Blink: A Horizon Guide to the Senses

    • July 11, 2012
    • BBC Two

    Touch, sight, smell, hearing and taste - our senses link us to the outside world. Dr Kevin Fong looks back through 40 years of Horizon archives to find out what science has taught us about our tools of perception - why babies use touch more than any other sense, why our eyes are so easily tricked and how pioneering technology is edging closer to the dream of replacing our human senses if they fail.

  • S2012E10 Mission to Mars

    • July 30, 2012
    • BBC Two

    Horizon goes behind the scenes at Nasa as they count down to the landing of a 2.5 billion-dollar rover on the surface of Mars. The nuclear-powered vehicle, the size of a car, will be winched down onto the surface of the red planet from a rocket-powered crane. That's if things go according to plan; Mars has become known as the Bermuda Triangle of space because so many missions there have ended in failure. The Curiosity mission is the most audacious, and expensive, attempt to answer the question of whether there is life on Mars.

  • S2012E11 Eat, Fast and Live Longer

    • August 6, 2012
    • BBC Two

    Michael Mosley has set himself a truly ambitious goal: he wants to live longer, stay younger and lose weight in the bargain. And he wants to make as few changes to his life as possible along the way. He discovers the powerful new science behind the ancient idea of fasting, and he thinks he's found a way of doing it that still allows him to enjoy his food. Michael tests out the science of fasting on himself - with life-changing results.

  • S2012E12 How Big Is the Universe?

    • August 27, 2012
    • BBC Two

    Cosmologists talk about their project to create a map of everything in existence, and also reveal that their research has some highly unexpected results, creating a picture stranger than anything they had ever imagined.

  • S2012E13 How Small is the Universe?

    • September 3, 2012
    • BBC Two

    Horizon plunges down the biggest rabbit-hole in history in search of the smallest thing in the Universe. It is a journey where things don't just become smaller but also a whole lot weirder. Scientists hope to catch a glimpse of miniature black holes, multiple dimensions and even parallel Universes. As they start to explore this wonderland, where nothing is quite what it seems, they may have to rewrite the fundamental laws of time and space.

  • S2012E14 Defeating the Superbugs

    • September 10, 2012
    • BBC Two

    Across the world we are seeing the emergence of bacteria that have gone rogue. These are the superbugs, dangerous bacteria that are becoming resistant to our only defense; antibiotics. Horizon meets the scientists who are tracking the spread of these potential killers around the globe, and discovers the new techniques researchers are developing to help defeat these superbugs.

  • S2012E15 Immortal? A Horizon Guide to Ageing

    • July 17, 2012
    • BBC Two

    Is there any way to slow or even prevent the ravages of time? Veteran presenter Johnny Ball looks back over the 45 years that Horizon - and he - have been on air to find out what science has learned about how and why we grow old. Charting developments from macabre early claims of rejuvenation to the latest cutting-edge breakthroughs, Johnny discovers the sense of a personal mission that drives many scientists and asks whether we are really any closer to achieving the dream of immortality.

  • S2012E16 The Final Frontier? A Horizon Guide to the Universe

    • October 17, 2012
    • BBC Two

    Dallas Campbell looks back through almost 50 years of the Horizon archives to chart the scientific breakthroughs that have transformed our understanding of the universe. From Einstein's concept of spacetime to alien planets and extra dimensions, science has revealed a cosmos that is more bizarre and more spectacular than could have ever been imagined. But with every breakthrough, even more intriguing mysteries that lie beyond are found. This great journey of discovery is only just beginning.

  • SPECIAL 0x94 Dawn of the Dinosaurs (Revisited)

    • December 6, 2002

    How scientists now believe that dinosaurs may have actually come into existence thanks to an earlier meteoric impact.

Season 2013

  • SPECIAL 0x71 The Truth About Meteors

    • March 3, 2013
    • BBC Two

    On a bright, cold morning on 15th February 2013, a meteorite ripped across the skies above the Ural mountains in Russia, distintegrating into three pieces and exploding with the force of 20 Hiroshimas. It was a stark reminder that the Earth's journey through space is fraught with danger. A day later, another much larger 143,000-tonne asteroid passed within just 17,000 miles of the Earth. Presented by Professor Iain Stewart, this film explores what meteorites and asteroids are, where they come from, the danger they pose and the role they have played in Earth's history.

  • S2013E01 The Creative Brain: How Insight Works

    • March 14, 2013
    • BBC Two

    It is a feeling we all know - the moment when a light goes on in your head. In a sudden flash of inspiration, a new idea is born. Today, scientists are using some unusual techniques to try to work out how these moments of creativity - whether big, small or life-changing - come about. They have devised a series of puzzles and brainteasers to draw out our creative behaviour, while the very latest neuroimaging technology means researchers can actually peer inside our brains and witness the creative spark as it happens. What they are discovering could have the power to make every one of us more creative.

  • S2013E02 How to Avoid Mistakes in Surgery

    • March 21, 2013
    • BBC Two

    A&E doctor Kevin Fong finds out how doctors can avoid making mistakes in the high-pressure, high-stakes world of the operating theatre. He sets out to learn how other professionals make life and death decisions under pressure, from airline pilots facing emergencies, to the Fire Service dealing with lethal blazes, to the world of Formula One pit crews. Kevin discovers how all these fields are helping to make surgery safer.

  • SPECIAL 0x72 Mend Me: A Horizon Guide to Transplants

    • March 27, 2013
    • BBC Two

    Transplant surgery has now reached incredible heights, from achieving full face transplants to growing organs in the lab. This Horizon Guide looks back at the extraordinary odds doctors and patients have had to overcome to achieve these amazing breakthroughs. What we now take for granted has been a hard won struggle, both for the patients who were willing to gamble their lives and the doctors who faced ethical and medical dilemmas in the name of progress. Michael Mosley looks through the Horizon archive, identifying the key turning points for transplant surgery to explore how far science can go in its bid to prolong life.

  • S2013E03 The Truth about Taste

    • March 28, 2013
    • BBC Two

    Taste is our most indulgent sense but it is only in recent years that we have started to understand why we really love the foods we do - and it is a lot more surprising than you might think. There may a way to make food taste sweeter without adding any extra sugar and it is all down to a trick that happens in your brain. Horizon meets the scientist who has grown the perfect tomato, that is sweeter and juicier than anything you are likely to find on a shelf, as well as the men and women hoping to become elite, professional tasters.

  • S2013E04 The Age of Big Data

    • April 4, 2013
    • BBC Two

    In Los Angeles, a remarkable experiment is underway; the police are trying to predict crime, before it even happens. At the heart of the city of London, one trader believes that he has found the secret of making billions with math. In South Africa, astronomers are attempting to catalogue the entire cosmos. These very different worlds are united by one thing - an extraordinary explosion in data. Horizon meets the people at the forefront of the data revolution, and reveals the possibilities and the promise of the age of big data

  • SPECIAL 0x70 Tomorrow's World

    • April 11, 2013
    • BBC Two

    Liz Bonnin delves in to the world of invention, revealing the people and technologies set to transform all our lives. She examines the conditions that are promising to make the 21st century a golden age of innovation and meets some of the world's foremost visionaries, mavericks and dreamers. From the entrepreneurs that are driving a new space race, to the Nobel Prize wining scientist leading a nanotech revolution, this is a tour of the people and ideas delivering the world of tomorrow, today.

  • S2013E05 The Secret Life of the Cat

    • June 13, 2013
    • BBC Two

    Horizon discovers what your cat really gets up to when it leaves the cat flap.

  • S2013E06 Little Cat Diaries

    • June 14, 2013
    • BBC Two

    Looks at the cats who stood out in the experiment conducted in The Secret Life of the Cat.

  • S2013E07 Fracking: The New Energy Rush

    • June 19, 2013
    • BBC Two

    Investigating the controversial process of mining natural gas via hydraulic fracturing.

  • S2013E08 Swallowed by a Black Hole

    • June 26, 2013
    • BBC Two

    The black hole at the centre of the Milky Way is getting ready to feast. A gas cloud three times the size of our planet has strayed within the gravitational reach of our nearest supermassive black hole.

  • S2013E09 What Makes us Human?

    • July 3, 2013
    • BBC Two

    Professor Alice Roberts is making a new human being - she is pregnant with her second child. But before he is born, she wants to find out what makes a human, human? What is that separates us from our closest living relatives - the chimpanzees? We share 99% of our DNA with chimpanzees and yet from the moment of birth, our lives are completely different. So are we just another animal, or is there something special about being human? Before her new baby emerges into the world, Professor Roberts sets out to explore what it is about our bodies, our genes and ultimately our brains that set us apart from our furry cousins - what is it that truly makes us human?

  • S2013E10 The Truth About Personality

    • July 10, 2013
    • BBC Two

    Michael Mosley explores the latest science about how our personalities are created - and whether they can be changed. Despite appearances, Mosley is a pessimist who constantly frets about the future. He wants to worry less and become more of an optimist. He tries out two techniques to change this aspect of his personality - with surprising results. And he travels to the frontiers of genetics and neuroscience to find out about the forces that shape all our personalities.

  • S2013E11 What's Killing Our Bees? A Horizon Special

    • August 2, 2013
    • BBC Two

    Bill Turnbull investigates one of the biggest mysteries in the British countryside: what is killing our bees. It is a question that generates huge controversy. Changes in the weather, pesticides and even a deadly virus have all all been blamed. It is a question that Bill is all too familiar with as a beekeeper himself. He meets the scientists who are fitting minute radar transponders on to bees to try to find answers.

  • S2013E12 Monitor Me

    • August 12, 2013
    • BBC Two

    Dr Kevin Fong explores a medical revolution that promises to help us live longer, healthier lives. Inspired by the boom in health-related apps and gadgets, it's all about novel ways we can monitor ourselves around the clock. How we exercise, how we sleep, even how we sit.

  • S2013E13 Defeating the Hackers

    • August 19, 2013
    • BBC Two

    Exploring the murky and fast-paced world of the hackers out to steal money and identities and wreak havoc with people's online lives, and the scientists who are joining forces to help defeat them. Horizon meets the two men who uncovered the world's first cyber weapon, the pioneers of what is called ultra paranoid computing, and the computer expert who worked out how to hack into cash machines.

  • S2013E14 Dinosaurs: The Hunt for Life

    • August 26, 2013
    • BBC Two

    The hunt for life within the long-dead bones of dinosaurs may sound like the stuff of Hollywood fantasy - but one woman has found traces of life within the fossilised bones of a T Rex. Dr Mary Schweitzer has seen the remains of red blood cells and touched the soft tissue of an animal that died 68 million years ago. Most excitingly of all, she believes she may just have found signs of DNA. Her work is revolutionising our understanding of these iconic beasts.

  • S2013E15 Sex: A Horizon Guide

    • September 11, 2013
    • BBC Two

    Sex is a simple word for a very complex set of desires. It cuts to the core of our passions, our wants, our emotions. But when it goes wrong, it can be the most painful thing of all. Professor Alice Roberts looks through 45 years of Horizon archive to see how science came to understand sex, strived to solve our problems with it, and even help us to do it better. Can science save the day when sex goes wrong?

  • SPECIAL 0x80 Impact! A Horizon Guide to Plane Crashes

    • October 14, 2013

    It's a macabre paradox, but almost every advance in aviation safety has been driven by a crash. After every crash, investigators determine its cause and scientists make every effort to ensure the same mistakes never happen again. Dallas Campbell delves into the Horizon archives to chart the deadly disasters that have helped make air travel today the safest it has ever been.

  • SPECIAL 0x81 Impact! A Horizon Guide to Car Crashes

    • October 21, 2013

    In the 1950s up to 8,000 people died every year on the roads in this country - a truly horrific figure. Thankfully it has now fallen to around 2,000 a year - still a terrible toll, but a vast improvement, particularly given the increase in cars on the road. Dallas Campbell looks back over decades of Horizon and BBC archive to chart the key scientific breakthroughs that have transformed road safety and saved millions of lives. However, it hasn't all been about innovative engineering and groundbreaking medical discoveries - scientists have also had to act as campaigners, persuading car manufacturers to install their life saving devices and urging the public to use them.

  • SPECIAL 0x82 Comet of the Century: A Horizon Special

    • November 23, 2013

    Comet ISON could well be the brightest and most spectacular comet for a generation. It should appear above the eastern horizon from December 2013 as a glorious streak across the sky. ISON has been travelling towards the sun for ten thousand years and will make only one orbit through its corona before disappearing off into the outer solar system. But as well as providing a great spectacle, ISON's tail of vapourised gas and water, hundreds of millions of kilometres long, will give insights into some of the greatest mysteries of science; it will help explain the origins of the solar system, whether earth's water was delivered on comets and even whether we are alone in the universe.

Season 2014

  • S2014E01 Sugar v Fat

    • January 29, 2014
    • BBC Two

    What's worse for us: sugar or fat? To answer the hottest question in nutrition, twin doctors Chris and Xand Van Tulleken go on month long high-fat and high-sugar diets. The effects on their bodies are shocking and surprising. But they also discover that in the debate about fat and sugar, the real enemy might have been hiding in plain sight.

  • S2014E02 Swallowed by a Sinkhole

    • February 3, 2014
    • BBC Two

    In February 2013, a hole opened up beneath a home in Florida, and swallowed a man. Jeff Bush was asleep when a sinkhole opened up beneath his bedroom. Despite the efforts of his brother to rescue him, Jeff was never seen again and his body was never recovered. Professor Iain Stewart travels to Florida to try and understand what killed Jeff, and why the geology of this state makes it the sinkhole capital of the world.

  • S2014E03 Man on Mars - Mission to the Red Planet

    • February 10, 2014
    • BBC Two

    Horizon goes behind the scenes at Nasa to discover how it is preparing for its most ambitious and daring mission: to land men - and possibly women - on the surface of Mars. It's over 40 years since Neil Armstrong made the first human footprint on the moon. But getting to the red planet would involve a journey of at least three years. Horizon meets the scientists and engineers who are designing new rockets, new space suits and finding ways to help astronauts survive the perils of this long voyage. And it turns out that having the 'right stuff' for a mission to mars might not be quite what you expect.

  • S2014E04 The Power of the Placebo

    • February 17, 2014
    • BBC Two

    As they contain no active ingredient, placebo medicines and pills should not really work, but they are now being shown to be effective in helping treat pain and depression and even alleviating some of the symptoms of Parkinson's disease. This programme explores why they work and how everyone could benefit from them.

  • S2014E05 How You Really Make Decisions

    • February 24, 2014
    • BBC Two

    Horizon uncovers the truth about how you really make decisions. Every day you make thousands of decisions, big and small, and behind all them is a powerful battle in your mind, pitting intuition against logic. This conflict affects every aspect of your life - from what you eat to what you believe, and especially to how you spend your money. And it turns out that the intuitive part of your mind is a lot more powerful than you may realise.

  • S2014E06 Living with Autism

    • April 1, 2014
    • BBC Two

    When pioneering developmental psychologist Professor Uta Frith started her training back in the 1960s, she met a group of beautiful, bright-eyed young children who seemed completely detached from the rest of the world. It turned out they had just been given the then-new diagnosis of autism. Uta passionately wanted to know more about these children, and they inspired her to dedicate the rest of her career to studying the autistic mind. On the eve of National Autism Day, Horizon reveals how Uta's lifetime study of people with autism has transformed our understanding of this mysterious condition. In this film Uta shows how people with autism perceive and interact with the world and how, for them, another kind of reality exists. She meets people with autism who have extraordinary talents, and explains why they often fail to understand jokes. She also explores whether many of us could be just a little bit autistic.

  • S2014E07 The £10 Million Challenge

    • May 22, 2014
    • BBC Two

    To celebrate its 50th birthday, Horizon invites the public to play a role in tackling the greatest challenges facing science today. This special episode of Horizon launches the £10 million Longitude Prize 2014 - a prize developed by Nesta, with Technology Strategy Board as funding partner, to find solutions to a new scientific challenge. The Longitude Prize 2014 commemorates the 300th anniversary of the original Longitude prize - a £20,000 reward for finding a way to determine longitude at sea accurately. The prize was overseen by the Board of Longitude, comprising the scientific, political and naval leaders of the day. A range of possible methods were developed with the Board of Longitude's support, but Yorkshire clockmaker John Harrison was the biggest winner with his marine chronometer clock, which enabled ships accurately and reliably to determine their longitude, avoiding potential shipwreck and enabling Britain's global trade to flourish. Horizon explores six potential challenges nominated by a new Longitude Committee, and launches a vote to determine which should be put forward as the new Longitude prize. The question is 'if you had £10 million to make one change to the world, what would you do?' Professor Alice Roberts hosts the episode from the Royal Observatory at Greenwich, examining the history of the Longitude prize, and the ambition and rationale behind the project. The programme also features Prof Alice Roberts, Michael Mosley, Liz Bonnin, Prof Iain Stewart, Dr Helen Czerski, Dr Kevin Fong and Dr Saleyha Ahsan examining each of the six nominated challenges in detail.

  • S2014E08 Where is Flight MH370?

    • June 17, 2014
    • BBC Two

    Horizon tells the inside story of the search for Malaysia Airlines flight MH370. With access to the key players on the frontline in the southern Indian Ocean and the British satellite engineers who tracked the plane's final hours, Horizon breaks open the biggest mystery in aviation history. The film reveals how MH370 disappeared in a radar blind spot; what investigators believe happened to the aircraft in its last minutes; and how the area in which it could be found is still to be searched. Plus Horizon examines the new technologies, like black box streaming and enhanced air traffic surveillance, that mean an airliner should never vanish without trace again.

  • S2014E09 What's Wrong with Our Weather?

    • July 17, 2014
    • BBC Two

    Over the last few years, our weather in Britain has become more extreme. Last winter was the wettest ever recorded, as deadly storms battered the country for weeks on end. But previous winters have seen bitter lows of -22, as Britain was plunged into a deep freeze. What everyone wants to know now is: why is our weather getting more extreme, can we expect to see more of it in the future, and has it got anything to do with climate change? In this episode of Horizon, physicist Dr Helen Czerski and meteorologist John Hammond make sense of Britain's recent extreme weather and discover that there is one thing that connects all our recent extreme winters - the jet stream, an invisible river of air that powers along 10 km above us. What's worrying is that recently it has been behaving rather strangely. Scientists are now trying to understand what is behind these changes in the jet stream. Helen and John find out if extreme winters are something we may all have to get used to in the future.

  • S2014E10 Should I Eat Meat? - The Big Health Dilemma

    • August 18, 2014
    • BBC Two

    Dr Michael Mosley seeks to establish the truth about meat. Are those barbecue favourites like burgers and sausages really that bad? Should we all go vegetarian instead? Michael uncovers the latest science and puts it to the test on a high-meat diet. Will eating beef and bacon every day be bad for him? What meat should a healthy carnivore be buying?

  • S2014E11 Should I Eat Meat? - How to Feed the Planet

    • August 20, 2014
    • BBC Two

    Dr Michael Mosley examines the impact eating meat has on the planet and finds out what meat eco-friendly carnivores should be buying: free-range organic or factory-farmed meat.

  • S2014E12 Allergies: Modern Life and Me

    • August 27, 2014
    • BBC Two

    Changes to the bacteria that live inside all of us are responsible for increasing the number of people with allergies, suggests new research. In this episode of Horizon, the show investigates this claim by conducting a unique experiment with two allergic families in order to find out just what it is in the modern world that is to blame. With a raft of mini cameras, GPS units and the very latest gene sequencing technology, the show discovers how the western lifestyle is impacting their bacteria. Why are these changes making people allergic? And what can be done to put a stop to the allergy epidemic?

  • S2014E13 Inside the Dark Web

    • September 3, 2014
    • BBC Two

    Twenty-five years after the world wide web was created, it is now caught in the greatest controversy of its existence: surveillance. With many concerned that governments and corporations can monitor our every move, Horizon meets the hackers and scientists whose technology is fighting back. It is a controversial technology, and some law enforcement officers believe it is leading to 'risk-free crime' on the 'dark web' - a place where almost anything can be bought, from guns and drugs to credit card details. Featuring interviews with the inventor of the world wide web, Sir Tim Berners-Lee, and the co-founder of WikiLeaks, Julian Assange, Horizon delves inside the 'dark web'.

  • S2014E14 Ebola - The Search for a Cure

    • September 10, 2014
    • BBC Two

    The Ebola virus. No-one knows exactly where it comes from but one thing is certain - it's one of the most virulent infections known to science. This special episode of Horizon meets the scientists and doctors from all around the world looking for the cure and hears first-hand accounts of what it's actually like to catch - and survive - this terrible disease.

  • S2014E15 Is Your Brain Male or Female?

    • September 29, 2014
    • BBC Two

    Dr Michael Mosley and Professor Alice Roberts investigate if male and female brains really are wired differently. New research suggests that the connections in men and women's brains follow different patterns, patterns which may explain typical forms of male and female behaviour. But are these patterns innate, or are they shaped by the world around us? Using a team of human lab rats and a troop of barbary monkeys, Michael and Alice test the science and challenge old stereotypes. They ask whether this new scientific research will benefit both men and women - or whether it could drive the sexes even further apart.

  • SPECIAL 0x83 Cat Watch 2014 - A Cat's Eye View

    • October 7, 2014

    Playful pets, fearsome fighters or deadly hunters? Millions of us have cats in our homes, yet we know very little about them. In this series, Liz Bonnin joins forces with some of the world's top cat experts to conduct a groundbreaking scientific study. With GPS trackers and cat cameras, we follow 100 cats in three very different environments to find out what they get up to when they leave the cat flap. In the first programme we discover how our cats see, hear and smell the world with the senses of their wild ancestors, and why this could be making life difficult for them in the modern world.

  • SPECIAL 0x84 Cat Watch 2014 - The Lion in Your Lap

    • October 8, 2014

    The second episode of this unique scientific study reveals the wild side of pet cats. Using GPS trackers and cat cameras, they show how these felines transform from pampered pet to purring predator as soon as they leave the cat flap. Liz Bonnin and some of the world's top cat experts put Ozzy and Smudge under surveillance to find out who is king of the street and reveal why, no matter how hard we try, we can't keep our cats' hunting instincts under control.

  • SPECIAL 0x85 Cat Watch 2014 - Cat Talk

    • October 9, 2014

    In the final episode of this groundbreaking scientific study, Liz Bonnin and a team of scientists reveal the secret language of our cats, the surprising conversations they have when we are asleep, and why they meow to us but not each other. We rig a house with cameras and cat trackers to discover if four cats living under one roof all get on as well as we would like to think. And we find out why living alongside us is making life difficult for our 21st-century cats.

Season 2015

  • SPECIAL 0x86 What's The Right Diet For You? (1)

    • January 12, 2015
    • BBC Two

    Instead of reaching for the latest fad diet, the best way to lose weight successfully is a personalised approach - diets tailored to your individual biology and psychology. In a groundbreaking national experiment, Dr Chris van Tulleken and Professor Tanya Byron join a team of leading experts to put 75 overweight volunteers on diets designed to tackle the specific reasons why they eat too much. The volunteers are put through a series of tests at a residential clinic to understand how their genes, hormones and psychology influence their eating behaviour. They are then put on the diets the experts believe are best suited to them. Can science succeed where other diets have failed?

  • SPECIAL 0x87 What's The Right Diet For You? (2)

    • January 13, 2015
    • BBC Two

    It is time to see if personalised dieting will work in normal life. The volunteers have been given one of three diets to follow - based on their genes, their hormones and their psychology. But now they are back at home, trying to stick to their personalised diets with all the stresses and temptations of real life. Dr Chris van Tulleken and Professor Tanya Byron discover how our genetic makeup can make temptation difficult to resist, how understanding the brain reveals what makes us comfort eat and what science can tell us about why we make disastrous food choices.

  • SPECIAL 0x88 What's The Right Diet For You? (3)

    • January 14, 2015
    • BBC Two

    So far the volunteers have successfully been losing lost weight, but now the honeymoon period is over. It is the final two months of the diet, and their minds and bodies are fighting back. Dr Chris van Tulleken and Professor Tanya Byron find out if the new personalised diets will help them stay on course, and the experts reveal the scientific secrets to permanent dieting success.

  • S2015E01 Secrets of the Solar System

    • March 3, 2015
    • BBC Two

    New planets are now being discovered outside our solar system on a regular basis, and these strange new worlds are forcing scientists to rewrite the history of our own solar system. Far from a simple story of stable orbits, the creation of our solar system is a tale of hellfire, chaos and planetary pinball. It's a miracle our Earth is here at all.

  • SPECIAL 0x89 Climate Change: A Horizon Guide

    • March 4, 2015
    • BBC Two

    Today, the topic of climate change is a major part of daily life, yet 40 years ago it was virtually unheard of. Since then, Horizon and the BBC have followed scientists as they have tried to unpick how the climate works and whether it is changing. Dr Helen Czerski delves into this unique archive to chart the transformation of a little-known theory into one of the greatest scientific undertakings in history. It has been a constantly surprising journey of discovery that has revolutionised our understanding of climate, and seen scientists face unprecedented controversy and criticism.

  • SPECIAL 0x90 The Mystery of Murder: A Horizon Guide

    • March 9, 2015
    • BBC Two

    There are about 600 murders each year in the UK. So, what drives people to kill? Are some people born to kill or are they driven to it by circumstances? Michael Mosley delves into the BBC archives to chart scientists' progress as they probed the mind of the murderer to try to understand why people kill, and to find out whether by understanding murder we can prevent it.

  • S2015E02 Aftershock: The Hunt for Gravitational Waves

    • March 10, 2015
    • BBC Two

    Horizon travels to the South Pole to tell the inside story of one of the greatest scientific quests of our time. In March 2014, a discovery there made headlines around the world, with evidence from the Big Bang itself - ripples in space and time called 'gravitational waves'. In the world of theoretical physics, this was a bombshell. For some it meant Nobel Prizes, while for others, their ideas were in shreds. This is the story of this extraordinary discovery, and what happened when it all began to unravel...

  • S2015E03 Dancing in the Dark - The End of Physics?

    • March 17, 2015
    • BBC Two

    Scientists genuinely don't know what most of our universe is made of. The atoms we're made from only make up four per cent. The rest is dark matter and dark energy (for 'dark', read 'don't know'). The Large Hadron Collider at CERN has been upgraded. When it's switched on in March 2015, its collisions will have twice the energy they did before. The hope is that scientists will discover the identity of dark matter in the debris. The stakes are high - because if dark matter fails to show itself, it might mean that physics itself needs a rethink.

  • S2015E04 70 Million Animal Mummies: Egypt's Dark Secret

    • May 11, 2015
    • BBC Two

    The team investigate the use of modern medical technology to scan Egyptian animal mummies from museums across the world. By creating 3-D images of their content, experts are discovering the truth about the strange role animals played in ancient Egyptian belief. This episode of Horizon meets the scientists working in Egypt who are exploring the ancient underground catacombs where mummies were originally buried to reveal why the ancient Egyptians mummified millions and millions of animals.

  • S2015E05 Is Binge Drinking Really That Bad?

    • May 20, 2015
    • BBC Two

    How bad can our drinking pattern be for our health? Doctors and genetically identical twins Chris and Xand van Tulleken want to find out. With the current drinking guidelines under review, the twins embark on self-experimentation to see the effects of different drinking patterns on their health. With Chris drinking 21 units spread evenly across the week and Xand having his 21 in single weekly binges, how will their bodies differ after a month? Catching up with the latest research into alcohol drinking patterns, we ask if moderate drinking is genuinely good for us - and whether binge drinking is really that bad.

  • S2015E06 The Trouble with Space Junk

    • August 5, 2015
    • BBC Two

    In 2014, the International Space Station had to move three times to avoid lethal chunks of space debris and there is an increasing problem of satellites mysteriously breaking down. With first-hand accounts from astronauts and experts, Horizon reveals the scale of the problem of space junk. Our planet is surrounded by hundreds of millions of pieces of junk moving at 17,000 miles per hour. Now the US government is investing a billion dollars to track them, and companies around the world are developing ways to clear up their mess - from robot arms to nets and harpoons. Horizon investigates the science behind the hit film Gravity and discovers the reality is far more worrying than the Hollywood fiction.

  • S2015E07 Are Health Tests Really A Good Idea?

    • August 12, 2015
    • BBC Two

    Michael Mosley puts himself through a battery of health tests available to people who feel perfectly well. From an expensive heart scan to a new national screening procedure to detect the earliest signs of bowel cancer, Mosley sets out to discover which if any of the tests are worth doing.

  • S2015E08 First Britons

    • August 19, 2015
    • BBC Two

    Horizon reveals how new archaeological discoveries are painting a different picture of the very first native Britons. For centuries it's been thought that these hunter-gatherers lived a brutal, hand-to-mouth existence. But extraordinary new evidence has forced scientists to rethink who these people were, where they came from and what impact they had on our early history. Now, our impression is of a hardy, sophisticated people who withstood centuries of extreme climate change and a devastating tsunami that was to give birth to the island nation of Britain. Their way of life may even have survived beyond its greatest ever threat - the farming revolution.

  • S2015E09 OCD: A Monster In My Mind

    • August 26, 2015
    • BBC Two

    Most of us think that Obsessive Compulsive Disorder (OCD) is just over fussy tidying. But it's actually much more serious. Sophie has to check that she hasn't killed people, looking for dead bodies wherever she goes, Richard is terrified of touching the bin, and Nanda is about to have pioneering brain surgery to stop her worrying about components on her body - that her eyebrow might not be aligned or that she has bad breath. Professor Uta Frith meets the people living with OCD, looks at the therapy available and asks what neuroscience can offer by way of a cure.

  • S2015E10 Which Universe Are We In?

    • September 2, 2015
    • BBC Two

    Imagine a world where dinosaurs still walk the earth. A world where the Germans won World War II and you are President of the United States. Imagine a world where the laws of physics no longer apply and where infinite copies of you are playing out every storyline of your life. It sounds like a plot stolen straight from Hollywood, but far from it. This is the multiverse Until very recently the whole idea of the multiverse was dismissed as a fantasy, but now this strangest of ideas is at the cutting edge of science.And for a growing number of scientists, the multiverse is the only way we will ever truly make sense of the world we are in. Horizon asks the question: Do multiple universes exist? And if so, which one are we actually in?

  • S2015E11 Cosmic Dawn: The Real Moment of Creation

    • September 9, 2015
    • BBC Two

    Forget the big bang. The real moment of creation was the Cosmic Dawn - the moment of first light. This is the scientific version of the story of Genesis. The big bang gets all the credit for creating our universe. But in fact, the universe it gave was dark and boring. There were no stars, no galaxies, just a vast, black fog of gas - the cosmic dark ages. But, after a hundred million years of nothing, came a dramatic moment of transformation - the Cosmic Dawn. It's the moment the first stars were born, the moment that lit up the Universe, and made the first structure and the first ingredients of life. This was the real moment of creation. Astronomers are now trying to witness the cosmic dawn. For the first time they have the tools to explore the very first stars of the universe and to tell the scientific story of our creation.

  • S2015E12 Are Video Games Really That Bad?

    • September 16, 2015
    • BBC Two

    The video game industry is a global phenomenon. There are over 1.2 billion gamers across the planet, with sales projected soon to pass $100 billion per year. But their very popularity fuels the controversy that surrounds them. They frequently stand accused of corrupting the young - of causing violence and addiction. But is this true? Horizon reveals a scientific community deeply divided. Some are convinced that video games incite aggression. Others insist they have no effect whatsoever on real-world violence. But away from the controversy, there is a growing body of evidence that suggests video games may help keep the brain sharp, and could soon revolutionize how we combat mental decline as we age.

  • SPECIAL 0x91 Tim Peake Special - How to be an Astronaut

    • December 13, 2015

    On the 15th December, Tim Peake will launch into space to be Britain's first astronaut on board the International Space Station. For the past two years, Tim has been filming a video diary for Horizon showing the risks, pressures and rigorous training required to launch into space. Horizon also talks exclusively to his wife and two children as they prepare to wave him goodbye on his voyage to space. From training in the Soyuz capsule, centrifuges, space station mockups, virtual reality and a huge pool to replicate spacewalks, to dealing with the physical dangers of weightlessness, witnessing his first launch and spending time away from his wife Rebecca and his two sons, this is an intimate portrait and remarkable insight into the world of an astronaut.

Season 2016

  • S2016E01 The Immortalist

    • March 16, 2016
    • BBC Two

    The gripping story of how one Russian internet millionaire is turning to cutting-edge science to try to unlock the secret of living forever. Dmitry Itskov recently brought together some of the world's leading neuroscientists, robot builders and consciousness researchers to try to devise a system that would allow him to escape his biological destiny. Entering Dmitry's seemingly sci-fi world, Horizon investigates the real science inspiring his bold plan to upload the human mind to a computer. There are doubters - like the major neuroscientist who tells us 'it's too stupid, it simply cannot be done'. But as we also meet the Japanese maker of Erica, one of the world's most human-like robots, who tells us the destiny of humans is to become robots to overcome the constraints of time, see how a quadriplegic Californian man is already controlling a robot arm with his thoughts, and explore the groundbreaking work of the scientist behind the world's largest neuroscience project - the $6 billion US Brain Initiative - who tells us the effort to map all the activity of the brain could be a crucial step towards mind uploading, Horizon asks is it really so crazy to think Dmitry Itskov could succeed in his goal of bringing about immortality for all of us within 30 years?

  • S2016E02 Project Greenglow: The Quest for Gravity Control

    • March 23, 2016
    • BBC Two

    This is the story of an extraordinary scientific adventure - the attempt to control gravity. For centuries, the precise workings of gravity have confounded the greatest scientific minds - from Newton to Faraday and Einstein - and the idea of controlling gravity has been seen as little more than a fanciful dream. Yet in the mid 1990s, UK defence manufacturer BAE Systems began a ground-breaking project code-named Greenglow, which set about turning science fiction into reality. On the other side of the Atlantic, Nasa was simultaneously running its own Breakthrough Propulsion Physics Project. It was concerned with potential space applications of new physics, including concepts like 'faster-than-light travel' and 'warp drives'. Looking into the past and projecting into the future, Horizon explores science's long-standing obsession with the idea of gravity control. It looks at recent breakthroughs in the search for loopholes in conventional physics and examines how the groundwork carried out by Project Greenglow has helped change our understanding of the universe. Gravity control may sound like science fiction, but the research that began with Project Greenglow is very much ongoing, and the dream of flying cars and journeys to the stars no longer seems quite so distant.

  • S2016E03 The Mystery of Dark Energy

    • March 30, 2016
    • BBC Two

    Horizon looks at dark energy - the mysterious force that is unexpectedly causing the universe's expansion to speed up. The effects of dark energy were discovered in 1998 but physicists still don't know what it is. Worse, its very existence calls into question Albert Einstein's general theory of relativity - the cornerstone of modern physics. The hunt for the identity of dark energy is on. Experiments on earth and in space generate data that might provide a clue, but there are also hopes that another Einstein might emerge - someone who can write a new theory explaining the mystery of the dark energy.

  • S2016E04 Oceans of the Solar System

    • April 6, 2016
    • BBC Two

    The oceans define the earth. They are crucial to life and we used to think that they were unique to our blue planet. But we were wrong. It has recently been discovered that there are oceans all over our solar system and they are very similar to our own. And now scientists are going on an epic journey in search of new life in places that never seemed possible. Nasa is even planning to dive to the depths of a strange, distant ocean in a remarkable submarine. Horizon discovers that the hunt for oceans in space is marking the dawn of a new era in the search for alien life.

  • S2016E05 The End of the Solar System

    • April 13, 2016
    • BBC Two

    This is the story of how our solar system will be transformed by the aging sun before coming to a spectacular end in about eight billion years. Astronomers can peer into the far future to predict how it will happen by analysing distant galaxies, stars and even planets in their final moments. In this film, Horizon brings these predictions to life in a peaceful midwestern town that has a giant scale model of the solar system spread out all over the city. As it ages, the sun will bloat into a red giant star, swallowing planets... as well as half the town. The fate of the Earth itself hangs in the balance. How will the solar system end?

  • S2016E06 Should We Close Our Zoos?

    • April 17, 2016
    • BBC Two

    Liz Bonnin presents a controversial and provocative episode of Horizon, investigating how new scientific research is raising hard questions about zoos - the film explores how and why zoos keep animals, and whether they need to change to keep up with modern science or ultimately be consigned to history. Should zoos cull their animals to manage populations? Liz travels to Copenhagen Zoo, who killed a giraffe and fed it to the lions, to witness their culling process first hand. They think it is a natural part of zoo keeping that is often swept under the carpet. Should some animals never be kept in captivity? In a world exclusive, Liz visits SeaWorld in Florida and asks if captivity drove one of their orcas to kill his trainer. But could zoos be the answer to conserving endangered species? Liz examines their record, from helping breed pandas for the wild to efforts to save the rhinos. She meets one of the last surviving northern white rhinos and discovers the future of this species now lies in a multimillion-dollar programme to engineer them from stem cells. Veteran conservation scientist Dr Sarah Bexell tells Liz the science of captive breeding is giving humanity false hope.

  • S2016E07 How to Find Love Online

    • April 25, 2016
    • BBC Two

    Dr Xand Van Tulleken is single and looking for love. Mathematician Dr Hannah Fry wants to use him as her guinea pig to test whether the algorithms that dating sites use to match people actually work. While Hannah builds a dating site, Xand meets the scientists investigating online dating - and learns what pictures to use and what to write in his profile. He tries out a 'bot' that has automated a swiping app and has an MRI scan to find out whether his brain is equipped for love. 50 members of the public take part in some mini experiments at a date night - and Xand goes on various dates to test whether the algorithm is better than him choosing randomly.

  • S2016E08 Ice Station Antarctica

    • May 4, 2016
    • BBC Two

    Antarctica is the last great wilderness. It's the coldest, windiest, driest and most isolated place on Earth. And every winter, for over three months of the year, the sun never rises. But it's also home to the British Antarctic Survey's Halley Research Station. A veteran of living and working at Halley in the early eighties, BBC weatherman Peter Gibbs makes an emotional return to the place he once called home. A place that, during his time, was key to the discovery of the ozone hole. The journey starts with an arduous 12-day, 3000-mile voyage onboard the RRS Ernest Shackleton. Once on the ice shelf, Peter is delighted to finally arrive at the futuristic research station and marvels at the cutting edge science being done at Halley today. From vital discoveries about how our lives are vulnerable to the sun's activities, to studying interplanetary travel and the threat of man-made climate change. But Peter's journey is also something of a rescue mission. The research station's home is a floating ice shelf that constantly moves and cracks, and the ice shelf has developed a chasm that could cast Halley adrift on a massive iceberg.

  • SPECIAL 0x100 Ice Station Antarctica: Part One

    • May 21, 2016
    • BBC Two

    BBC weatherman Peter Gibbs makes an emotional return to Antarctica, years after he lived and worked at the British Antarctic Survey's Halley Research Station. (Part One as shown on BBC News)

  • SPECIAL 0x101 Ice Station Antarctica: Part Two

    • May 28, 2016
    • BBC Two

    BBC weatherman Peter Gibbs's return to Antarctica becomes something of a rescue mission. The British Antarctic Survey reveals how it will save the Halley Research Station from being cast adrift on an iceberg. (Part Two as shown on BBC News)

  • S2016E09 Curing Alzheimer's

    • May 11, 2016
    • BBC Two

    Horizon investigates a new era of Alzheimer's research, which is bringing hope to millions of sufferers across the world. New scanning and gene technology is allowing scientists to identify the disease at its earliest stages, often 15 years before symptoms appear and the brain cells are destroyed. A series of new drugs trials in Colombia, the USA and Europe are showing startling success in reducing beta amyloid, the protein which is a hallmark of the disease. It is also becoming clear that changes in lifestyle can prevent the development of the disease. A new system inside the brain has been discovered which clears amyloid when we are in deep sleep, but allows it to accumulate if we don't sleep well. The programme reveals that for sufferers in the early stages of the disease, brain connections, or synapses, can be strengthened and even replaced by absorbing enough of the right nutrients. A UK-wide trail helps sufferers in the early stages to concentrate on improving everyday tasks, and in the process not only make their lives easier, but helps to reactivate the planning and organisational parts of the brain. In an ageing world, where the biggest risk of developing Alzheimer's is old age, the scientific breakthroughs in Alzheimer's disease are bringing hope where once there was despair.

  • S2016E10 E-Cigarettes: Miracle or Menace?

    • May 22, 2016
    • BBC Two

    Michael Mosley investigates the dramatic rise in e-cigarettes. They're everywhere these days, but what does the latest scientific research on them reveal? Michael reveals what e-cigarettes are really doing to your health. Are they really better for you than cigarettes? What is actually in them? Is passive vapour harmful? And can they really stop you from smoking? Michael meets some of the scientists around the world studying them, asks a group of volunteers to try to give up smoking regular cigarettes using them, and even takes up 'vaping' himself, smoking an e-cigarette every day for a month to see the effects on his own health - no easy task for such a committed non-smoker.

  • S2016E11 Why Are We Getting So Fat?

    • June 7, 2016
    • BBC Two

    Over 62% of adults in the UK are currently overweight or obese and this figure is set to rise. A common attitude is that obese people should be ashamed - it is their fault, they have no will power and if they could just 'eat less and exercise more', the problem would soon be solved. Yet, despite millions of pounds being spent on this simple message, the UK is getting fatter every year. Cambridge geneticist Dr Giles Yeo believes that for many obese people, simply eating less is a lot harder than you might think - and he is taking a road trip around the UK and America to uncover why. He meets the real people behind some of the more shocking newspaper headlines and, through their stories, reveals surprising truths which dispel commonly held myths about obesity. He gains access to scientists and doctors trialling cutting-edge techniques to tackle the crisis - from a 'miracle' hormone injection to a transfusion of faecal matter, and even learns a thing or two about his own size and relationship with food.

  • S2016E12 Sports Doping - Winning At Any Cost?

    • July 19, 2016
    • BBC Two

    Dr Xand van Tulleken investigates the world of performance-enhancing drugs - from the athletes seeking the rewards of fame, glory and lucrative sponsorship deals to the hundreds of thousands of people in the UK now regularly taking anabolic steroids to look good and buff up. What are these drugs? What do they do to the body? And is it worth it? Xand's investigation reveals the extraordinary gamble dopers take with their health. Long-term effects include kidney failure, cognitive impairment and testicular shrinkage, and Xand witnesses how users are self-experimenting with drugs that have not yet been approved for human use. Horizon uncovers the new frontier of doping, from new molecules to gene therapy - where the genes that control muscle growth are altered. These new methods could be completely undetectable by the doping authorities. Finally, with the help of his twin brother Chris, Xand discovers the legal ways some athletes try to gain the edge.

  • S2016E13 Inside CERN

    • August 10, 2016
    • BBC Two

    With exclusive behind-the-scenes access, Horizon follows the highs and lows of an extraordinary story in particle physics. In June 2015, teams at CERN started running the large hadron collider at the highest energy ever. Rumours quickly emerged that they were on the brink of a huge discovery. A mysterious bump in some data suggested a first glimpse of a brand new particle that could change our understanding of how the universe works. A new particle could hint at extra dimensions and help us understand the very beginning of the universe - but first the team has to find it. Horizon follows the scientists as they hunt for the elusive signals that would prove if there is a new particle or if it is just noise from their machine.

  • S2016E14 My Amazing Twin

    • August 25, 2016
    • BBC Two

    The acerbically witty and severely facially disfigured broadcaster Adam Pearson presents a personal film about genetics. He and his twin brother Neil are genetically identical and both share the same genetic disease, Neurofibromatosis 1 (Nf1) - yet they are completely different. Adam's face is covered with growths, whereas Neil has none. Neil has short-term memory loss, whereas Adam is razor sharp. How can the same genetic disease affect identical twins so differently? Adam is on the cusp of a successful film and television career, but the disease has left tumours on his face that are growing out of control and he could lose his sight. For years, everyone thought Adam's brother Neil had escaped symptoms, but today his life is governed by epilepsy and a mysterious memory loss that suddenly came on during his teens. Determined to save their future, Adam tries to find out why the disease affects the twins so differently and see if there is anything he can do to stop it from tearing their lives apart.

  • S2016E15 Jimmy Carr and the Science of Laughter

    • September 11, 2016
    • BBC Two

    Jimmy and his guests try to get to the bottom of what laughter is, why we enjoy it so much and what, if anything, it has to do with comedy. Between them, and with the help of contributions from other scientists, they discover that laughter is much older than our species, and may well have contributed to making us human. With professors Sophie Scott, Robin Dunbar and Peter McGraw.

  • S2016E16 The Lost Tribes of Humanity

    • October 12, 2016
    • BBC Two

    Alice Roberts explores recent discoveries in the study of human origins, revealing the transformation that has been brought about in this field by genetics. Traditional paleo-anthropology, based on fossils, is being transformed by advanced genome sequencing techniques. We now know that there were at least four other distinct species of human on the planet at the same time as us - some of them identified from astonishingly well-preserved DNA extracted from 50,000-year-old bones, others hinted at by archaic sections of DNA hidden in our modern genome. What's more, we now know that our ancestors met and interacted with these other humans, in ways that still have ramifications today. Alice uses these revelations to update our picture of the human family tree.

  • S2016E17 The Wildest Weather in the Universe

    • October 23, 2016
    • BBC Two

    We love talking about the weather - is it too hot or too cold, too wet or too windy? It's a national obsession. Now scientists have started looking to the heavens and wondering what the weather might be like on other planets. Today, we are witnessing the birth of extra-terrestrial meteorology, as technology is allowing astronomers to study other planets like never before. They began with our solar system, sending spacecraft to explore its furthest reaches, and now the latest telescopes are enabling astronomers to study planets beyond our solar system. Our exploration of the universe is revealing alien worlds with weather stranger than anyone could ever have imagined - we've discovered gigantic storm systems that can encircle entire planets, supersonic winds, extreme temperatures and bizarre forms of rain. On some planets, the temperatures are so hot that the clouds and rain are believed to be made of liquid lava droplets, and on other planets it is thought to rain precious stones like diamonds and rubies. We thought we had extreme weather on Earth, but it turns out that it is nothing compared to what's out there. The search for the weirdest weather in the universe is only just beginning.

Season 2017

  • S2017E01 Clean Eating: The Dirty Truth

    • January 19, 2017
    • BBC Two

    Imagine if the food you eat could 'clean' your body and make you feel well. Dr Giles Yeo investigates the latest diet craze and social media sensation - clean eating. In a television first, Giles cooks with Ella Mills, the Instagram entrepreneur behind Deliciously Ella, one of the most popular brands associated with clean eating, and examines how far her plant-based cooking is based on science. She tells him clean has lost its way: "Clean now implies dirty and that's negative. I haven't used it, but as far as I understood it when I first read the term, it meant natural, kind of unprocessed, and now it doesn't mean that at all. It means diet, it means fad". Giles sifts through the claims of the Hemsley sisters, who advocate not just gluten-free but grain-free cooking, and Natasha Corrett, who popularises alkaline eating through her Honestly Healthy brand. In America, Giles reveals the key alternative health figures whose food philosophies are influencing the new gurus of clean. He discovers that when it comes to their promises about food and our health, all is not always what it appears to be. Inside a Californian ranch where cancer patients have been treated with alkaline food, Giles sees for himself what can happen when pseudoscience is taken to a shocking extreme.

  • S2017E02 Hair Care Secrets

    • January 23, 2017
    • BBC Two

    The Horizon team have gathered together a team of scientists and doctors to investigate the incredible, natural material that is growing out of our heads - our hair. With access to the research laboratories of some of the world's leading hair care companies, including L'Oreal and ghd, the team explore the latest cutting-edge research and technology designed to push the boundaries of hair and hair care. Each one of us has a unique head of hair - an average of 150,000 individual hair strands growing approximately one centimetre every month. Over your lifetime, that is over 800 miles. The time and effort we put into styling, sculpting and maintaining this precious material has created a global hair care market worth a staggering £60 billion pounds. With such high stakes, it is inevitable that when developing hair-care products, science and business operate hand in hand. The team reveal how this industry science compares to the rigorous academic standards that they are used to. These investigations also reveal why we care so much about our hair, and whether or not it is worth splashing out on expensive shampoos. They uncover the magic ingredients found in conditioners and lay bare the secrets of the shiny, glossy hair seen in the adverts.

  • S2017E03 ADHD and Me with Rory Bremner

    • April 25, 2017
    • BBC Two

    Comedian and impressionist Rory Bremner is on a personal mission to uncover the science of ADHD (attention deficit hyperactivity disorder), a condition which he has suspected he has. In this film, Rory learns about the science of ADHD, goes for a diagnosis and tries the drug methylphenidate (also known as Ritalin) for the first time - just before walking on stage.

  • S2017E04 Why Did I Go Mad?

    • May 2, 2017
    • BBC Two

    Horizon follows three people living with voices, hallucinations and paranoia, to explore what causes this kind of phenomena. Providing a rare first-hand insight into these experiences, they reveal just what it is like to live with them day-to-day. They examine the impact of social, biological and environmental influences on conditions traditionally associated with insanity, such as schizophrenia and psychosis, and within the film they look at how new ways of understanding the brain are leading to a dramatic change in treatments and approaches and examine whether targeting the root causes of psychosis can lead to recovery. Above all, they try to uncover why it happened to them - and whether it could happen to you.

  • S2017E05 Strange Signals from Outer Space!

    • May 16, 2017
    • BBC Two

    Horizon investigates claims of signals from extra terrestrials. In 2006, Duncan Lorimer and Maura McLaughlin discovered a enigmatic signal from space, known as a fast radio burst. It was a pulse of radiation so bright, it didn't appear to be caused by any known object in the universe. Explanations ranged from colliding neutron stars to communication signals from an alien civilisation. Scientists have been searching the cosmos for strange signals like the 'Lorimer Burst' for more than 50 years, ever since astronomer Frank Drake convened a secretive meeting of a group of scientists calling themselves the 'Order of the Dolphin'. The film ends with scientists latest search for extra-terrestial intelligence - Horizon obtained exclusive access to film researchers at the Green Bank Telescope searching for radio signals from 'Tabby's Star' - a star so mysterious some scientists believe might be surrounded by a Dyson Sphere - a vast energy collector built by advanced aliens.

  • S2017E06 Volcanoes of the Solar System

    • May 23, 2017
    • BBC Two

    Volcanoes have long helped shape the Earth. But what is less well known is that there are volcanoes on other planets and moons that are even more extraordinary than those on our own home planet. Horizon follows an international team of volcanologists in Iceland as they draw fascinating parallels between the volcanoes on Earth and those elsewhere in the solar system. Through the team's research, we discover that the largest volcano in the solar system - Olympus Mons on Mars - has been formed in a similar way to those of Iceland, how a small moon of Jupiter - Io - has the most violent eruptions anywhere, and that a moon of Saturn called Enceladus erupts icy geysers from a hidden ocean. Computer graphics combined with original Nasa material reveal the spectacular sights of these amazing volcanoes.

  • S2017E07 Antarctica - Ice Station Rescue

    • June 7, 2017
    • BBC Two

    Filmmaker Natalie Hewit follows the everyday people battling in the most extreme environment on Earth to move Halley VI, a vital polar research station. Britain's state-of-the-art Antarctic research base Halley VI is in trouble. Built on the Brunt Ice Shelf, it sits atop a massive slab of ice that extends far beyond the Antarctic shoreline. But the ice is breaking apart and just 6km from the station is a ginormous crevasse, which threatens to separate Halley from the rest of the continent, setting the £28 million base adrift on a massive iceberg. So Halley needs to move. But this is probably the toughest moving job on Earth, and the team of 90 who have been tasked with the mission aren't just architectural or engineering experts. They are plumbers, mechanics and farmers from across the UK and beyond - ordinary men and women on an extraordinary adventure. Their practical skills will be what makes or breaks this move.

  • S2017E08 Cyber Attack - The Day the NHS Stopped

    • June 12, 2017
    • BBC Two

    A few weeks ago, the National Health Service was hit by a widespread and devastating cyber attack - Horizon tells the inside story of one of the most challenging days in the history of the NHS. On the morning of 12 May the attack started. Appointment systems, pathology labs, x-rays and even CT scanners were infected - putting not just data but patients lives at risk, and on every screen a simple - some may even say polite - message appeared. 'Ooops, your files have been encrypted!' But what followed was far from civilised. It was very clear that all the data on an infected machine was now scrambled and only the hackers could unscramble it. For a price - and with an extra twist - after a few days the ransom money doubled, and if nothing was paid within a week, the hackers threatened to destroy all the data - forever

  • S2017E09 10 Things You Need to Know About the Future

    • June 19, 2017
    • BBC Two

    This episode of Horizon looks at the issues that will change the way we live our lives in the future. Rather than relying on the minds of science fiction writers, mathematician Hannah Fry delves into the data we have today to provide an evidence-based vision of tomorrow. With the help of the BBC's science experts - and a few surprise guests - Hannah investigates the questions the British public want answered about the future.

  • S2017E10 Dawn of the Driverless Car

    • June 29, 2017
    • BBC Two

    The car has shrunk the world, increased personal freedom and in so many ways expanded our horizons, but there is a flipside. Fumes from car exhausts have helped to destroy our environment, poisoned the air we breathe and killed us in far more straightforward ways. But all that is going to change. This episode of Horizon enters a world where cars can drive themselves, a world where we are simply passengers, ferried about by wholesome green compassionate technology which will never ever go wrong. And it is almost here. Horizon explores the artificial intelligence required to replace human drivers for cars themselves, peers into the future driverless world and discovers that, despite the glossy driverless PR (and assuming that they really can be made to work reliably), the reality is that it might not be all good news. From the ethics of driverless car crashes to the impact on jobs, it might be that cars are about to rise up against us in ways that none of us are expecting.

  • S2017E11 Dippy and the Whale

    • July 13, 2017
    • BBC Two

    Over the last two years, the BBC's science strand Horizon has been behind the scenes at London's Natural History Museum, following the dramatic replacement of the iconic Dippy the Dinosaur skeleton cast with the real skeleton of a blue whale - the world's biggest animal. Narrated by Sir David Attenborough, this special film follows the teams involved in what has to be one of the world's most unique engineering challenges. Replacing Dippy is brave and bold - it is the first thing visitors see when they enter the grand Hintze Hall, but the Natural History Museum is changing, and the installation of the colossal blue whale skeleton is the start of a new chapter. The largest animal ever to have lived, blue whales were driven to the brink of extinction by hunting and were the first species humans decided to save, telling an inspiring story of hope for the natural world.

  • S2017E12 What Makes a Psychopath?

    • August 29, 2017
    • BBC Two

    Psychopaths have long captured the public imagination. Painted as charismatic, violent predators lacking in all empathy, they provide intrigue and horror in equal measure. But what precisely is a psychopath? What is it that drives them to cause harm, even kill? And can they ever be cured? Presented by psychologist Professor Uta Frith, this is an in-depth exploration of the psychopathic mind including one of the most notorious of all, Moors murderer Ian Brady. Through an ongoing correspondence between the Horizon team and Brady, the film features some of the very last letters he wrote. The film also features a series of candid interviews with prison inmates who not only describe their crimes but why they think they committed them. Horizon explores not only how each individual's crimes were shaped by their own life experiences, but also gives an insight in to how these people think and behave. Working with the world's experts in the field, the film sheds light on the biological, psychological and environmental influences that shape a psychopath. And it looks to the future, with groundbreaking research that suggests a lifetime of incarceration is not the only option to manage violent and dangerous psychopaths.

  • S2017E13 Mars - A Traveller's Guide

    • September 12, 2017
    • BBC Two

    The dream of sending humans to Mars is closer than ever before. In fact, many scientists think that the first person to set foot on the Red Planet is alive today. But where should the first explorers visit when they get there? Horizon has gathered the world's leading experts on Mars and asked them where would they go, if they got the chance - and what would they need to survive? Using incredible real images and data, Horizon brings these Martian landmarks to life - from vast plains to towering volcanoes, from deep valleys to hidden underground caverns. This film also shows where to land, where to live and even where to hunt for traces of extra-terrestrial life. This is the ultimate traveller's guide to Mars.

  • S2017E14 Goodbye Cassini - Hello Saturn

    • September 18, 2017
    • BBC Two

    A billion miles from home, out of fuel and almost out of time. After 13 years traversing the Saturnian system, the Cassini spacecraft is in the throes of a fiery death, becoming part of the very planet it has been exploring. As he embarks on his final mission, a one-way trip to the heart of Saturn, celebrate the incredible achievements and discoveries of a mission that has changed the way we see the solar system. Strange new worlds with gigantic ice geysers, hidden subterranean oceans that could support life, and a new moon merging into Saturn's magnificent rings.

  • S2017E15 Being Transgender

    • September 26, 2017
    • BBC Two

    How does a person know their gender? Do they see themselves as male or female, or somewhere in between? More and more people around the world do not identify with the gender they were assigned to at birth. Increasingly, people are expressing their gender identity outside of the 'norms', and the lines of gender are becoming more blurred than ever. This film explores what it actually means to be transgender, and what happens when a person transitions psychologically, physically and biologically. We follow a number of transgender people going through their own transition. From a socially transitioning transwoman to two young transmen embarking on hormones, to a transwoman going through gender confirmation surgery - we get a snapshot into what transitioning and being transgender is really like from those living it. We also hear from experts in the field of gender and find out how modern medicine is helping people to transition their gender. And we explore where gender identity actually comes from.

Season 2018

  • S2018E01 My Amazing Brain: Richard's War

    • February 5, 2018
    • BBC Two

    Horizon follows the story of Richard Gray and his remarkable recovery from a life-changing catastrophic stroke. The film shows the rarely seen journey back to recovery. Recorded by his documentary film-maker wife Fiona over four years, this film shows the hard work of recovery. Initially bed bound and unable to do anything, including speak, the initial outlook was bleak, yet occasionally small glimmers of hope emerged. Armed always with her camera, Fiona captures the moment Richard moves his fingers for the first time, and then over months she documents his struggle to relearn how to walk again. The story also features poignant footage delivered in a series of flashbacks, in which we see and hear Richard at his professional best. He was a peacekeeper with the United Nations, immersed in the brutal war in Sarajevo, Bosnia. We also hear from the surgeons and clinicians who were integral to Richard's remarkable recovery, from describing life-saving, high-risk reconstructive surgery to intensive rehabilitation programmes that push the former soldier to his limits. As the film starts, Fiona asks 'will Richard, my Richard still be there?' By the end the answer is clear.

  • S2018E02 Teenagers vs Cancer: A User's Guide

    • June 26, 2018
    • BBC Two

    What is it like to be young and find out you have got cancer? What you will find out in this film may surprise you. This film, narrated by actor and comedian Jack Whitehall, tells 11 inspirational stories, revealing how a range of young people have dealt with their cancer diagnosis and the treatment process. We hear, primarily in their own words, about their fears, their hopes and their experiences - affirming the view that 'the best therapist for a teenager with cancer... is another teenager with cancer.'

  • S2018E03 How to Build a Time Machine

    • July 10, 2018
    • BBC Two

    Time travel is not forbidden by the laws of nature, but to build a time machine, we would need to understand more about those laws and how to subvert them than we do now. And every day, science does learn more. In this film Horizon meets the scientists working on the cutting edge of discovery - men and women who may discover how to build wormholes, manipulate entangled photons or build fully functioning time crystals. In short, these scientists may enable an engineer of the future to do what we have so far been only able to imagine - to build a machine that allows us travel back and forward in time at the touch of a button. It could be you! Science fiction? Watch this space.

  • S2018E04 Spina Bifida & Me

    • July 26, 2018
    • BBC Two

    One in every 1,000 pregnancies in Britain has a spine or brain defect like spina bifida. 30 years ago, actress Ruth Madeley was one of them. Despite having spina bifida herself, it is a condition she doesn't fully understand. In this programme, Ruth sets out to discover why she has it, whether it could have been prevented and what it means for her future. Ruth meets the lord campaigning for a change in the law that he says could prevent thousands of birth defects. And she discovers that a pioneering surgery could offer a different future for babies diagnosed with spina bifida, by operating on them before they are even born. She discovers how this surgery was invented, meets the families whose lives it has changed and follows the team of British surgeons preparing to perform this extraordinary foetal surgery in the UK for the very first time. But Ruth also examines attitudes in Britain today and asks whether we should change the way we see disability.

  • S2018E05 Jupiter Revealed

    • August 7, 2018
    • BBC Two

    'To send a spacecraft there is a little bit insane,' says Scott Bolton when talking about Jupiter, the largest planet in the solar system. But that is exactly what he has done, because Scott is head of Juno, the Nasa mission designed to peer through Jupiter's swirling clouds and reveal the wonders within. But this is no ordinary world. This documentary, narrated by Toby Jones, journeys with the scientists into the heart of a giant. Professor Kaitlin Kratter shows us how extreme Jupiter is. She has come to a quarry to measure out each planet's mass with rocks, starting with the smallest. Mercury is a single kilogram, and the Earth is 17. But Jupiter is on another scale entirely. It is seven tonnes - that is two and a half times the mass of all the other planets combined. On Kaitlin's scale it is not a pile of rocks, it is the truck delivering them. With extreme size comes extreme radiation. Juno is in the most extreme environment Nasa has visited. By projecting a 70-foot-wide, life-size Juno on a Houston rooftop, Scott shows us how its fragile electronics are encased in 200kg of titanium. As Scott puts it, 'we had to build an armoured tank to go there.' The team's efforts have been worthwhile. Professor Andrew Ingersoll, Juno's space weatherman, reveals they have seen lightning inside Jupiter, perhaps a thousand times more powerful than Earth's lightning. This might be evidence for huge quantities of water inside Jupiter. Prof Ingersoll also tells us that the Great Red Spot, a vast hurricane-like storm that could swallow the Earth whole, goes down as far as they can see - 'it could go down 1,000s of kilometres'. Deeper into the planet and things get stranger still. At the National Ignition facility in northern California, Dr Marius Millot is using powerful lasers normally used for nuclear fusion for an astonishing experiment. He uses '500 times the power that is used for the entire United States at a given moment' to crush hydrogen to the pressures inside Jupiter.

  • S2018E06 Stopping Male Suicide

    • August 22, 2018
    • BBC Two

    Suicide is the biggest killer of men under 50 in the UK - causing more deaths in this group than car accidents, and even more than cancer. This means that the most likely thing to kill Dr Xand Van Tulleken is himself. And he wants to know why. In this sensitive film, Xand finds out what we know about why people develop suicidal thoughts, and whether there is anything that we can do about it.

  • S2018E07 A Week Without Lying - The Honesty Experiment

    • August 29, 2018
    • BBC Two

    Deception is an integral part of human nature and it's estimated we all lie up to nine times a day. But what if we created a world in which we couldn't lie? In a radical experiment pioneering scientists from across Europe have come together to make this happen.

  • SPECIAL 0x93 The Horizon Guide to AI

    • September 4, 2018
    • BBC Two

    The BBC's Horizon programme began in 1964, and since then has produced films looking at computer technology and the emergence of 'artificial intelligence'. Our dreams always begin with ideology and optimism, only for this optimism to be replaced with suspicion that AI machines will take over. However, as the Horizon archive shows, throughout each decade once we have learnt to live with the new emerging technology of the time, the pattern begins again. We become once more optimistic, before becoming fearful of it. The dream for decades had been for a computer with AI to be embedded within a humanoid robot, but just as scientists began to perfect machines with these qualities, something happened nobody expected. Today, AI systems power our daily lives through smart technology. We are currently experiencing a level of fear about the power of AI, but will we enter the next decade optimistic about all that AI can deliver - or fearful of its ability to control vast areas of our lives?

  • S2018E08 The Placebo Experiment: Can My Brain Cure My Body?

    • October 4, 2018
    • BBC Two

    Dr. Michael Mosley cures real pain with fake pills in Britain's largest ever placebo trial.

  • S2018E09 Body Clock: What Makes Us Tick?

    • October 11, 2018
    • BBC Two

    A former commando spends ten days locked in an abandoned nuclear bunker, with no way of telling the time, to find out how best to manage his body clock and improve his health.

  • S2018E10 Avalanche: Making a Deadly Snowstorm

    • October 18, 2018
    • BBC Two

    Can we predict avalanches? How can we save more lives? A team of scientists led by Prof Danielle George create a massive avalanche to find out.

  • S2018E11 Vitamin Pills: Miracle or Myth?

    • October 25, 2018
    • BBC Two

    Nearly half of us take a vitamin or mineral supplement every day, but what are these pills sold on every high street actually doing? Digging deeper than the eye-catching words on the packaging, Dr Giles Yeo investigates who really needs a supplement by putting our diets to the test.

  • S2018E12 Diagnosis on Demand? The Computer Will See You Now

    • November 1, 2018
    • BBC Two

    Could a machine replace your doctor? Dr Hannah Fry explores the incredible ways AI is revolutionising healthcare - and what this means for all of us. This film chronicles the inside story of the AI health revolution, as one company, Babylon Health, prepare for a man vs machine showdown. Can Babylon succeed in their quest to prove their AI can outperform human doctors at safe triage and accurate diagnosis? Artificial intelligence is starting to transform healthcare beyond recognition - and tech companies large and small see almost limitless commercial opportunity. The ultimate vision is for accessible, affordable, better healthcare for almost everyone with a phone. In Britain this is already radically changing how some of us see our GPs. And in a world with a chronic shortage of doctors, but where even the very poor own mobile phones, it could be truly revolutionary. To witness this revolution from the inside, this film has privileged, behind-the-scenes access to ambitious British tech start-up Babylon Health, whose CEO Dr Ali Parsa declares with complete conviction 'we're going to do with healthcare what Google did with information.' Babylon launched its GP at Hand app in London in late 2017 and has already persuaded 30,000 Londoners to quit their old GPs to register instead for this NHS 'digital first' service, where patients discuss symptoms with an AI chatbot and see a doctor in minutes 24/7 via their phone. But GP at Hand's arrival has proved controversial - with many traditional GPs worried about the disruptive consequences for them and their patients, and others seeking to thwart its expansion nationwide. As this film reveals, there is a fundamental culture clash at play - between the 'move fast and break things' world of tech, and the cautious, diligent, often slow-moving world of medical science. So how will both camps respond when Babylon's AI attempts to pass the diagnostic sections of the Royal College of GPs exam? Amazingly, the NHS is today

  • S2018E13 The Contraceptive Pill: How Safe Is It?

    • November 21, 2018
    • BBC Two

    In recent years a groundbreaking new study has been released into the effects of the contraceptive pill. Research from Denmark claimed women on the pill and other forms of hormonal contraception were 70% more likely to be diagnosed with depression than those who were not. And another study has found hormonal contraception was linked to a seemingly dramatic risk of breast cancer. Negative headlines are nothing new for the contraceptive pill - first introduced in 1961, it has had a chequered history with early versions linked to cancer risk and life-threatening blood clots. Yet hormonal contraception remains Britain's most popular form of birth control, and today over three million women take regular doses of synthetic hormones. So should they be worried about its safety? GP Dr Zoe Williams gets behind the headlines in this Horizon investigation. A specially commissioned, nationwide survey reveals the areas of most concern to British women - from mental health to the risk of cancer and drop in libido. With the help of world leading scientists, Zoe finds out if these concerns are justified and by delving deep into the science around the pills side effects Horizon uncovers some striking revelations - from protecting women against cancer to increasing their risk of suicide.

Season 2019

  • S2019E01 We Need to Talk about Death

    • January 23, 2019
    • BBC Two

    In this film, Dr Kevin Fong makes a personal journey through the moral questions about death that face not just the medical profession, but each and every one of us. The question of how we die is a question that all of us must face, and yet we avoid talking about it. Modern medicine is focused on saving lives. Amazing technical advances have increased doctors' ability to treat a wide range of life-threatening diseases, meaning many more people live longer lives. Life expectancy has surged, and we regard death as something to be battled. It is common for the medical system to throw everything into treating patients right to the very end. But in our attempts to defeat death, the question is this - are we over-medicalising death and the final years of life at the expense of providing better palliative care that would result in a better quality of life? Is it time to reset the system, and learn how to die a better death? Kevin meets medical professionals who are at the heart of these dilemmas, as well as people who are right now facing up to the question of how to die a better death.

  • SPECIAL 0x99 Alastair Campbell: Depression and Me

    • May 21, 2019
    • BBC Two

    In an intensely personal and often surprising film for BBC Two, Alastair Campbell candidly talks about his experience living with depression and explores if radical new treatments can make a difference. Alastair is best known for his role as Tony Blair’s formidable and often contentious spin doctor, but, away from the public eye, he has been dogged by crippling bouts of depression for most of his life. Some days, just getting out of bed is too hard. Therapy and anti-depressant medication is helping him keep his head above water, but is that really the best he can hope for? Encouraged by his family, Alastair sets out on a journey to explore if cutting edge science can offer him - and the millions of people like him - the hope of one day living depression-free. As he tries to understand his depression better, he also reflects on key events in his life and asks if they could have had a negative effect on his mind.

  • S2019E02 Britain's Next Air Disaster? Drones

    • July 1, 2019
    • BBC Two

    In the wake of the disruption at Gatwick last December, high-risk specialist Aldo Kane investigates the scale of the threat that drones pose to UK airspace and airports - from rogue hobbyists to terrorist attacks. He explores what technology is out there that governments and the aviation industry can use to keep the skies safe.

  • S2019E03 The Honest Supermarket: What's Really in Our Food?

    • July 8, 2019
    • BBC Two

    We spend 190 billion pounds a year on groceries, but can we trust our supermarkets to tell us the truth about what we're buying? Dr Hannah Fry and Priya Tew investigate the food we eat.

  • S2019E04 Inside the Social Network: Facebook's Difficult Year

    • July 16, 2019
    • BBC Two

    Following the teams inside Facebook, revealing a hidden technological playground. The film tackles difficult questions, like how our data is used, and also shows how Facebook works.

  • SPECIAL 0x98 Journey to the Moon: A Horizon Special

    • July 17, 2019
    • BBC Two

    Professor Brian Cox takes a journey through the BBC science archive to explore the story of mankind's relationship with the moon, from James Burke testing Nasa equipment to Neil Armstrong's first steps on the lunar surface and the dramatic tale of Apollo 13. He also asks whether international competition could help reignite the public's enthusiasm for space travel and bring about the dawn of a new space age.

  • S2019E05 The 250 Million Pound Cancer Cure

    • July 22, 2019
    • BBC Two

    Proton beam therapy is the one of the most technologically advanced though expensive cancer treatments in the world - but it has the potential to save the lives of children with otherwise incurable cancers. Over two years, Horizon follows the engineers, scientists and medics as they race to build two new centres, one at the Christie Hospital in Manchester and one at University College Hospital in London, as well as following as the first children awaiting the lifesaving treatment. This is one of the most complex challenges the NHS has ever attempted. At the cutting edge of particle physics, proton beam therapy involves splitting hydrogen atoms to create a beam of protons travelling at two-thirds the speed of light, which target tumours with millimetre precision. But doing this in the heart of two of our biggest cities is no easy feat. The process generates so much radiation it needs to be housed in a maze-like nuclear bunker, with walls four metres thick. 2,000 tonnes of precision instruments are installed - more than four jumbo jets worth - and it all has to work perfectly. This special BBC Two programme goes behind the scenes on the £250 million cancer cure – from digging the biggest, widest hole ever to exist in London to the treatment of the first patients in the UK.

  • S2019E06 Cannabis: Miracle Medicine or Dangerous Drug?

    • August 28, 2019
    • BBC Two

    At a pivotal moment in the history of one of the world’s oldest drugs, Dr Javid Abdelmoneim investigates the latest medical and scientific research into the effects of cannabis on the brain and body.

Season 2020

  • S2020E01 Addicted to Painkillers? Britain's Opioid Crisis

    • January 16, 2020
    • BBC Two

    Dr Michael Mosley immerses himself on the frontline of our prescription painkiller habit. In America, it is an epidemic. Now, new evidence raises concern about the UK's use of prescription opioids.

  • S2020E02 Chris Packham: 7.7 Billion People and Counting

    • January 21, 2020
    • BBC Two

    Naturalist Chris Packham investigates the impact a growing human population is having on the planet, asking whether the earth can sustain predictions of ten billion people by 2050.

  • S2020E03 Toxic Town: The Corby Poisonings

    • March 23, 2020
    • BBC Two

    The unknown story of the worst child-poisoning case since thalidomide, featuring a landmark legal battle by a group of mothers determined to uncover the truth.

  • SPECIAL 0x102 Coronavirus Special - Part 1

    • April 9, 2020
    • BBC Two

    Investigating the scientific facts and figures behind the biggest public health crisis in living memory as a new coronavirus takes an unprepared world by storm.

  • S2020E04 The Restaurant that Burns Off Calories

    • April 20, 2020
    • BBC Two

    Fred Sirieix and Zoe Williams open a restaurant with a difference, where every calorie eaten must be burned off by a secret gym team.

  • S2020E05 Hubble: The Wonders of Space Revealed

    • April 24, 2020
    • BBC Two

    To celebrate the 30th anniversary of its launch, this film tells the remarkable story of how Hubble revealed the awe and wonder of our universe and how a team of daring astronauts risked their lives to keep it working.

  • S2020E06 The Great British Intelligence Test

    • May 4, 2020
    • BBC Two

    Dr Hannah Fry and Michael Mosley put the public to the test, pitting young and old, males and females and tech lovers and readers against each other in a battle of wits.

  • SPECIAL 0x104 Coronavirus Special - Part 2

    • May 19, 2020
    • BBC Two

    Dr Chris van Tulleken, Dr Hannah Fry and Michael Mosley examine the latest research and explore some of the big questions about the new coronavirus and the pandemic it has created.

  • S2020E07 What's the Matter with Tony Slattery?

    • May 21, 2020
    • BBC Two

    Comedian Tony Slattery meets experts to explore his psychological problems, finding out if he is definitely bipolar, confronting addiction and opening up about a childhood trauma.

  • S2020E08 Pluto: Back From the Dead

    • July 6, 2020
    • BBC Two

    The incredible story of how Pluto has been propelled from an unremarkable ball of ice on the edge of the solar system to a world of unimaginable complexity - where some form of alien life might exist. Featuring first-hand accounts of the incredible discoveries made by New Horizons from many of the scientists involved in the mission.

Season 2021

  • S2021E01 Feast to Save the Planet

    • January 4, 2021
    • BBC Two

    MasterChef judge Gregg Wallace and mathematician Dr Hannah Fry take over a restaurant and invite five special guests to enjoy a dinner party with a difference, where they will be scored on the carbon footprint of every dish they choose. Food accounts for a third of all greenhouse gas emissions, so making informed choices about what we eat is more important than ever. Diners Sara Pascoe, Amol Rajan, Nikki Fox, Desiree Burch and Matthew Fort choose from a menu of tantalising treats, each of which tells its own environmental story. But will they be able to sort the eco-goodies from the eco-nasties hidden in each course? Gregg is with the kitchen team preparing delicious dishes and uncovering tips and tricks we can all use to cook more sustainably. Hannah is working with environmental scientists to reveal the carbon footprint of every single item on the menu and uncovering the latest research that can help us enjoy the food we love that doesn't cost the Earth.

  • SPECIAL 0x105 Coronavirus Special - What We Know Now

    • February 25, 2021
    • BBC Two

    In this third Horizon special, Dr Chris Van Tulleken is joined by his brother Xand and Dr Guddi Singh to take us through the latest developments and answer current concerns. Though the effect of the coronavirus pandemic has been devastating to many, the team reveal the breakthroughs in genetics, medicine and modelling that have provided a way out of this situation and given hope and confidence that, in the event of a future pandemic, we can take it on and win.

  • S2021E02 The Secret Science of Sewage

    • March 18, 2021
    • BBC Two

    Dr George McGavin and Dr Zoe Laughlin set up base camp at one of the UK's biggest sewage works to investigate the revolutionary science finding vital renewable resources and undiscovered life in human waste. Teaming up with world-class scientists, they search for biological entities in sewage with potentially lifesaving medical properties, find out how pee can generate electricity, how gas from poo can fuel a car and how nutrients in waste can help solve the soil crisis. They follow each stage of the sewage treatment process, revealing what the stuff we flush can tell us about how we live today, and the mindboggling biotechnology being harnessed to clean it, making the wastewater safe enough to return to the environment

  • SPECIAL 0x108 Dolly: The Sheep That Changed the World

    • November 23, 2021

    This documentary tells the full story for the first time with never-before-seen archive, revealing how on a small Scottish farm, a handful of the world’s best genetic scientists worked in secret to crack the holy grail of life: cloning. The story, when it broke, caused a moral panic to sweep the world. But how did it happen? Who was behind it? What was the science? And, ultimately, what is Dolly’s legacy today?

Season 2022

  • S2022E01 How to Sleep Well with Michael Mosley

    • March 31, 2022
    • BBC Two

    As more people than ever report struggling with their sleep, Michael Mosley uses the latest science to explore how this impacts our health and what can be done to improve our sleep.

  • SPECIAL 0x110 Fergal Keane: Living with PTSD

    • May 9, 2022
    • BBC Two

    In 2020, BBC special correspondent Fergal Keane went public with his diagnosis of PTSD. In this personal film, Fergal lays bare its impact on himself and others like him.

  • S2022E02 Making Sense of Cancer with Hannah Fry

    • June 2, 2022
    • BBC Two

    When she's diagnosed with cervical cancer at the age of 36, Hannah Fry explores the problematic issues surrounding how we screen for and treat cancer, asking if we could be overmedicalising it.

  • S2022E03 Super Telescope: Mission to the Edge of the Universe

    • July 14, 2022
    • BBC Two

    The inside story of the James Webb Space Telescope, following the Nasa team building the £8 billion device and the scientists taking its first image of distant stars and galaxies.