Dr. J. Allen Hynek pioneered new ways of studying aerial phenomenons and later developed a UFO classification system modeled by others, in this clip from Season 15, "The UFO Pioneers." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows ...

Could it be that the food of the gods was really sustenance for alien visitors? See more in Season 14, Episode 18, "Food of the Gods." 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 ...

A shocking DNA study released in 2018 reveals that the original builders of Stonehenge mysteriously vanished. See more in Season 14, Episode 17, "The Secrets of Stonehenge." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The ...

Throughout ancient cultures there are stories of god-like beings providing instruction to early humans. See more in this scene from Season 20, Episode 16, "The Teachers." 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 ...

There are numerous historical, religious and mythic accounts of ancient civilizations being wiped out by volcanoes, earthquakes, floods, and meteors. See more in Season 2, Episode 6, "Alien Annihilation." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at ...

Serpent gods are found in the religious traditions of Mesopotamia, Central and South America, India, China and Japan. See more in Season 14, Episode 8, "The Reptilian Agenda." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The ...

Is the military keeping alien secrets from us? 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 http://history.com/schedule. #AncientAliens ...

Are there alien messages in the stars? 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 http://history.com/schedule. #AncientAliens Subscribe for ...

Can sound waves be manipulated to move massive objects? 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. #AncientAliens Subscribe for more from Ancient Aliens and other ...

We revisit some of the most advanced civilizations the world has seen and their extraterrestrial connections in this three hour marathon 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 ...

Did ancient Druids travel to New England and New York's Hudson Valley centuries ago, bringing with them the beliefs and technologies of their alien mentors, the Shining Ones of Irish myth? See more in Season 14, Episode 7, "The Druid Connection." Watch all new episodes of Ancient Aliens, ...

When Spanish Conquistadors obliterated the historical record of the Maya in the 16th century, did they wipe out evidence that ancient people traveled to the Americas from all over the world? Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite ...