Ancient Astronaut Theorists believe that the colossal tower of Jupiter was erected by ancient sky gods, in this clip from Season 18, "Beneath the Sacred Temples." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite The HISTORY Channel shows at ...

A former Pentagon employee shares three groundbreaking declassified videos showing and a strange object with unusual flight characteristics, in this clip from Season 17, "The Disclosure Event." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your ...

On September 12th, 1991, NASA captured strange extraterrestrial activity but has since kept it hidden, in this clip from Season 4, "The Nasa Connection." Watch all new episodes of Ancient Aliens, returning soon, and stay up to date on all of your favorite The HISTORY Channel shows at ...

Ancient astronaut theories believe that the tsunami of Crete in 365 AD could’ve been caused by an ancient god known as Poseidon, in this clip from Season 4, "Aliens and Mega-Disasters." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite The ...

According to Francis Crick, human DNA was far too complex to have evolved over the history of planet earth, which led to theories of extraterrestrial interference with human DNA, in this clip from Season 17, "The Human Experiment." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and ...

Ancient Astronaut Theorists believe information in the bible reveals that extraterrestrials manipulated human DNA, in this clip from Season 17, "The Human Experiment." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite The HISTORY Channel ...

Ancient Astronaut Theorists have found compelling similarities between Mount Shasta and the Great Pyramid that explain the purpose they’ve served, in this clip from Season 17, "The Mystery of Mount Shasta." #AncientAliens Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to ...

Some experts believe that biology and technology can be combined to unlock the secrets of immortality in this clip from Season 10's episode, "Aliens and Robots". #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more ...

Ancient astronaut theorists believe that the approximately 12,000-year-old Gobekli Tepe monument in modern-day Turkey may have been built by the survivors of a lost society in this clip from Seaspn 10, Episode 2, "Aliens B.C". #AncientAliens Subscribe for more from Ancient Aliens and other great ...

Underwater structures in the Bahamas might reveal evidence of a lost extraterrestrial civilization that could be a warning about the future of humanity in this clip from Season 10, Episode 2, "Aliens B.C". #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: ...

Verner Von Braun developed NASA technologies that put a man on the moon, but some Ancient Astronaut Theorists suggest he was inspired by something extraterrestrial in this clip from Season 10, Episode 3, "NASA's Secret Agenda". #AncientAliens Subscribe for more from Ancient Aliens and other great ...