Meteor impacts, cosmic microbes, and space viruses have significantly impacted life as we know it. See more in this scene from Season 2, Episode 3, "Interstellar Fallout". Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. ...

Did aliens construct this ancient wonder of the world? See more in this compilation from Ancient Aliens. Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. 00:00 — Aliens Construct the 8th Wonder of the World 05:57 — Mysterious ...

A pilot flies alongside flying saucers, but is threatened by mysterious men to keep quiet about his experience. See more in this scene from Season 2, Episode 4, "Extraterrestrial Close Encounters." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at ...

Did giants from the sky build these structures on Earth? See more in this scene from Season 2, Episode 5, "Aliens and the Buried Past." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient ...

An investigation is opened when a pilot claims to have seen a gigantic spaceship while on a flight. See more in this scene from Season 2, Episode 1, "Unidentified Aerial Phenomena." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. ...

A mysterious orb flies alongside a Navy aircraft and abruptly stops. See more in this scene from Season 2, Episode 1, "Unidentified Aerial Phenomena." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for ...

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 ...

Area 51 has extreme security measures in place. So what lies inside this secretive military base? See more in this scene from Season 2, Episode 2, "Extraterrestrial Informants." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. ...

Do these pieces of evidence point to otherworldly connections to mankind? See more in this compilation from Ancient Aliens. Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens and ...

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. See more in this scene from Season 20, Episode 12, "Unlocking the Stargates." Watch all new episodes of ...

The largely unexplored continent of Antarctica has long been subject to rumors of UFOs, underground tunnel networks, and concealed ancient structures, giving rise to speculation about an alien presence beneath its icy surface. Learn more in this clip from Season 2, Episode 6, MYSTERIES BENEATH ...

Japan has had multiple incidents that may have included the work of aliens. See more in this compilation from Ancient Aliens. Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens ...