Secrets from Outer Space *Marathon* | Ancient Aliens | History

Check out these out of this world theories! See more in this Ancient Aliens Marathon. Watch all new episodes Fridays 9/8c; Stream Next Day, and stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. #HISTORY #AncientAliens Find out more about the show and watch full episodes on our site: https://histv.co/AncientAliens "Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years. Don't miss a video! Subscribe NOW: https://www.youtube.com/@HISTORY?sub_confirma… Chapters: 0:00 The Search for Exoplanets and Alien Life 42:04 The New Space Race and Colonizing Mars 1:17:04 Ancient Alien Visitors from Sirius 1:42:25 Linguistic Evidence of Extraterrestrial Contact 2:09:00 The Sirius Star System and Global Connections ABOUT THE HISTORY CHANNEL: The HISTORY® Channel, a division of A+E Global Media, is the premier destination for historical storytelling. From best-in-class docume