Uploaded August 2026 | Updated September 2026, 3 weeks ago
For thousands of years, cultures around the world have held a belief in stargates through which beings have traveled to Earth from distant points in the universe and even other dimensions. Could such portals truly exist? In Season 20, Episode 12, "Unlocking the Stargates."
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"Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.
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. The HISTORY® channel has been named the #1 U.S. TV network in buzz for seven consecutive years by YouGov BrandIndex, and a top favorite TV network by Beta Research Corporation. For a deeper dive, visit history.com or follow @history on Instagram, Twitter, Facebook, YouTube and TikTok.
For thousands of years, cultures around the world have held a belief in stargates through which beings have traveled to Earth from distant points in the universe and even other dimensions. Could such portals truly exist? In Season 20, Episode 12, "Unlocking the Stargates."
Stay up to date on all of your favorite shows on The HISTORY Channel website at history.com/schedule
#AncientAliens
Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows:
histv.co/SubscribeHistoryYT
Find out more about the show and watch full episodes on our site:
histv.co/AncientAliens
Check out exclusive The HISTORY Channel content:
History Newsletter - histv.co/newsletter
Website - histv.co/History
Facebook - histv.co/Facebook
Instagram - instagram.com/history
TikTok - tiktok.com/@history
"Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.
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. The HISTORY® channel has been named the #1 U.S. TV network in buzz for seven consecutive years by YouGov BrandIndex, and a top favorite TV network by Beta Research Corporation. For a deeper dive, visit history.com or follow @history on Instagram, Twitter, Facebook, YouTube and TikTok.
