Experts believe there's more nonhuman activity happening in Antarctica that's being kept a secret. See more in this clip from, "Aliens and Lost Civilizations."

#AncientAliens

Watch all new episodes of Ancient Aliens, Fridays at 8/7c, and next day on The HISTORY Channel website at history.com/schedule.

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
Twitter - histv.co/Twitter

"Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.

The HISTORY® Channel, a division of A+E Networks, 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 additional press materials visit the A+E Networks Press Center at press.aenetworks.com.

• Antarctica's Secret Alien Cover-Up | Ancient Aliens ( Download)
• Ancient Aliens: Unbelievable Extraterrestrial Encounters in Antarctica ( Download)
• Ancient Aliens: 5 SHOCKING Mysteries Beneath Polar Ice ( Download)
• Ancient Aliens: Civilization Buried Under Antarctica's Ice! (S14, E1) | Full Episode ( Download)
• Ancient Aliens: UFOs Spotted in Antarctica (Special) ( Download)
• Ancient Aliens: A Pyramid in Antarctica (Season 11, Episode 1) | History ( Download)
• Ancient Aliens: Crystal City Discovered Under Antarctica (Season 18) ( Download)
• Ancient Aliens: UFO Technology Found on Earth ( Download)
• Ancient Aliens: TOP 10 ALIEN ENCOUNTERS OF 2022 ( Download)
• Pyramids Found Beneath Antarctic Ice | The UnXplained (Season 3) ( Download)
• Ancient Aliens: ATLANTIS ON ANTARCTICA (Season 14) | History ( Download)
• Ancient Aliens: UNDERCOVER ALIEN CRASHES ( Download)
• Hidden City Lies Deep Beneath Antarctica (Season 18) | Ancient Aliens | The UnXplained Zone ( Download)
• Ancient Aliens: TOP 10 ALIEN ENCOUNTERS OF 2023 | PART 2 ( Download)
• Ancient Aliens: Hidden Chamber Discovered in Great Pyramid ( Download)