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Check out these alien theories from the stars. See more in this Ancient Aliens compilation. 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 Chapters 00:00 Zecharia Sitchin Introduces The Anunnaki Theory 01:29 Planet Nibiru And The Failing Alien Atmosphere 03:12 Sumerian Tablets Describe Sky Gods And Creation 04:56 Genetic Engineering And The Birth Of Humanity 07:38 Global Petroglyphs Depict Star Beings 17:00 Worldwide Cultures Linked To Star Visitors 18:13 Sierra Leone Sky Stones And Alien Artifacts 21:16 Zuni Petroglyphs And Sky People Teach Humanity 30:29 Dogon Tribe And Knowledge Of Sirius B 35:37 Verdict Did Extraterrestrials Shape Human Evolution 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_confirmation=1 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 documentary events, to a signature slate of industry leading nonfiction series and premium fact-based scripted programming, The HISTORY® Channel serves as the most trustworthy source of informational entertainment in media. FOLLOW HISTORY CHANNEL: Watch Full Episodes: https://www.history.com/videos Sign Up For History Emails: https://www.history.com/emails/sign-up Browse Topical Videos: https://www.history.com/topics Facebook: https://www.facebook.com/HISTORY/ Instagram: https://instagram.com/history TikTok: https://tiktok.com/@history X: https://twitter.com/history YouTube: https://www.youtube.com/@HISTORY Copyright Notice: This video and my YouTube channel contain dialog, music, and images that are property of The HISTORY® Channel. You are authorized to share the video link and channel, and embed this video in your website or others as long as a link back to our YouTube Channel is provided. © 2025 The HISTORY® Channel Have Aliens Been Visiting Earth for Millions of Years? | Ancient Aliens | History https://www.youtube.com/@HISTORY/