Home / Series / Horizon / Aired Order / Season 1979 / Episode 22

Darkness Visible

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

English
Cast & Crew
  • Originally Aired November 19, 1979
  • Runtime 60 minutes
  • Content Rating United States of America TV-PG
  • Network BBC Two
  • Created December 11, 2009 by
    Administrator admin
  • Modified December 11, 2009 by
    Administrator admin