Throughout the ancient world, structures were built to mirror the constellations in the night sky--and, in most cases, this is only apparent when they are viewed from high above the Earth. See more in Season 14, Episode 13, "The Constellation Code." Watch all new episodes of Ancient Aliens, ...

In 1952 cameras spotted UFOs flying over the White House lawn in Washington D.C. - these sightings eventually lead to Project Blue Book, created by the U.S. government, in this clip from Season 5, "Aliens and Cover-Ups." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to ...

Lurking in our oceans are creatures that defy explanation. See more in Season 14, Episode 5, "They Came from the Sea." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. ...

Did aliens from the tiny star Sirius B visit humans in the distant past, imparting the knowledge of civilization to peoples thousands of miles apart? See more in Season 14, Episode 4, "The Star Gods of Sirius." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on ...

Are these ancient stone structures actually harnessing energy from our planet? See more in this compilation from Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel website at ...

Could an exotic super heavy element provide the key to humanity's future in the stars? See more in Season 14, Episode 3, "Element 115." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel website at ...

Satellite images have revealed a giant face that appears to be carved into the Earth in Alberta, Canada, which has now become known far and wide as "The Badlands Guardian." See more in Season 14, Episode 2, "The Badlands Guardian." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and ...

Explore the enigmatic megalithic stones of Puma Punku, a site that has baffled archaeologists for centuries. Discover the secrets behind these massive, precisely cut stones and delve into the mysteries of this ancient Bolivian wonder. Watch all new episodes of Ancient Aliens, Fridays at 9/8c, ...

This is 1 hour of numerous UFO sightings that went viral throughout 2023. Most of this footage is from our previous channel that has been combined to create one awesome catalogue of possibly Extraterrestrial life. Relevant words ancient aliens, ancient aliens full episodes, ancient aliens ...

Dive into the realms of fear and mystery as we unveil the top 3 most frightening contact events and close encounters with extraterrestrial beings in this compilation from Ancient Aliens. Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at ...

Numerous sightings from around the world, a couple in Roswell witness the unexplained, a man in Thailand observes weather phenomenon, and a few classics that still remain undebunked. MUSIC THANKS TOO: Sneaky Snooper by Audionautix is licensed under a Creative Commons Attribution 4.0 license. ...

Could there be a connection among the numerous pyramids found scattered around the world? And if so, did these monuments once serve an extraterrestrial purpose, as Ancient Astronaut theorists suggest? Find out in this clip from Season 2, Episode 11, "EXTRATERRESTRIAL PYRAMIDS." Watch all new ...