Could extraterrestrials be hiding amongst us in animal form? Check out this scene from Season 1, Episode 2, "Aliens and Strange Creatures." Watch all new episodes of Ancient Aliens, Fridays, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. #AncientAliens ...

There’s an odd similarity between these groups. See more in this clip from Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens and other ...

Construction workers unearth evidence of a long-lost civilization in China. See more in this clip from "Aliens and Lost Civilizations." Watch all new episodes of Ancient Aliens, Fridays, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. #AncientAliens ...

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Spanish conquerors found thousands of Mayan handwritings that depicted secret rituals. See more in this clip from "Aliens and Lost Civilizations." Watch all new episodes of Ancient Aliens, Fridays, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. ...

Many proponents of the ancient astronaut hypothesis assert that humans are either the descendants or products of an alien intelligence that landed on Earth thousands of years ago. An allied notion is that humans evolved independently, but that much of human knowledge, religion, and culture ...

Something unexpected happens when Apollo 12 hits the moon. See more in this clip from Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens ...

Two pyramids located on two different continents share uncanny features. See more in this clip from "Aliens and Unexplained Engineering." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. #AncientAliens ...

In diesem Video berichtet eine Augenzeugin über eine der wichtigsten dokumentierte UFO-Sichtung überhaupt. 2004 trainierte die Navy Jagdfliegerin für einen Einsatz, bei dem es zu einem mysteriösen Vorfall mit einem unbekannten Flugobjekt kam. Alles zum Empfang von The HISTORY Channel: ...

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Ancient Astronaut Theorists reveal the original origins of the Aztec's. See more in this clip from "Aliens and Unexplained Engineering." Watch all new episodes of Ancient Aliens, Friday, January 6th, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. ...

Experts look into the exoplanet phenomena, in this clip from Ancient Aliens. Watch all new episodes of Ancient Aliens, Friday, January 6th, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens and other ...