10 Surprising Facts About: Planet Earth: Home to 7.2 Billion people planet Earth is a 5 billion year old ball of Iron, Oxygen, Silicon, Magnesium, and other trace elements, hurtling through space at 67,000 mph. Earth is a rather incredible place to be, here's some of the most extreme facts about the planet you live on. SUBSCRIBE - New Videos Every Monday & Thursday https://www.youtube.com/user/Thoughty2 Help me make better videos, support me on Patreon: http://bit.ly/1II0lLh FACEBOOK: https:/