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 ...

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 ...

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 ...

Are sacred places the product of man's reverence for God--or the result of contact with ancient space travelers? See more in this scene from Season 3, Episode 3, "Aliens and Sacred Places." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite ...