Uploaded August 2026 | Updated September 2026, 3 weeks ago

---

Entire villages vanish without a trace. Ancient civilizations mysteriously abandon their cities. And legends tell of giants, portals and strange beings descending from the sky. Ancient astronaut theorists investigate whether some of history’s greatest disappearances could have an extraterrestrial explanation in this Ancient Aliens marathon.

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.

HISTORY® is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, premium documentaries, and scripted event programming.