Ancient Aliens: Extraterrestrial Bacteria and the Origins of Life (Season 9) | History

Source video: HISTORY

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! In March 2011, ancient bacteria was found in rare meteorites that are more than 4 billion years old leading Ancient Astronaut Theorists to suggest life on earth came from outer space in this clip from Season 9, "Aliens and the Creation of Man". #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://po.st/SubscribeToHistory Find out more about the show and watch full episodes on our site: http://po.st/AncientAliens Check out exclusive HISTORY content: History Newsletter: http://po.st/HistoryNewsletter Website - http://po.st/HistoryWeb Facebook - http://po.st/HistoryFacebook Twitter - http://po.st/HistoryTwitter "Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.