Roswell, New Mexico hides dark interstellar secrets. Uncover the truth in this Ancient Aliens compilation. 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 ...

If ancient aliens visited Earth, who were they, and where did they come from? Possible historic evidence and beliefs are examined around the world. See more in Season 1, Episode 2, "The Visitors." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your ...

Dive into the ultimate exploration of humanity's greatest mysteries! Could the legendary powers of ancient gods and today's super-heroes be rooted in alien technology? Find out in this full episode marathon of "Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay ...

Through his thought experiments, Albert Einstein was able to tap into an advanced field of knowledge and enter altered states of consciousness - connecting him to the extraterrestrial world, in this clip from Season 5, "The Einstein Factor." Watch all new episodes of Ancient Aliens, Fridays at ...

For thousands of years, humankind has attempted to make contact with beings from beyond Earth. See more in this scene from Season 20, Episode 14, "The Search For Extraterrestrial Intelligence." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your ...

Might the tools and technology of ancient builders have come from distant galaxies? Find out more in this clip from Season 3, Episode 6, "ALIENS AND ANCIENT ENGINEERS." 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 ...

Are we nearing the day when whistleblowers will finally be taken seriously--and their accounts proven true? Find out in this clip from Season 20, Episode 13, "THE WHISTLEBLOWERS." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on ...

The theory surrounding Baalbek suggests that the construction of the site might have had assistance or guidance from beings beyond Earth. Find out 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 ...

Might an examination of Leonardo Da Vinci's masterful paintings, highly technical hand-drawn sketches, and private journals reveal knowledge of otherworldly technology and extraterrestrial beings? See more in Season 4, Episode 8, "The Da Vinci Conspiracy." Watch your favorite episodes of ...

Alaska's extensive wilderness is known for unexplained disappearances, electromagnetic anomalies, and mysterious creature sightings. Learn more in this scene from Season 2, Episode 6, "Mysteries Beneath the Ice". Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at ...

Across the globe, monumental stone figures silently bear witness to a forgotten era. See more in Season 2, Episode 10, "Alien Effigies." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from ...

Is it possible that shadow people, spirits, poltergeists, and other enigmatic entities are rooted in reality? See more in this scene from Season 2, Episode 12, "Aliens and the Unseen." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows ...