Ancient Astronaut Theorists travel to central New Mexico to examine a UFO crash site related to Roswell, in this clip from Season 15, "The Relics of Roswell." #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT ...

Ancient Astronaut Theorists uncover a 54 ton structure on Nan Madol that leads them to more questions, in this clip from Season 15, "The Mystery of Nan Madol." #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT ...

Are aliens deceiving humanity or is humanity itself deceived about aliens? Maybe they're not aliens after all? So are aliens deceiving humanity or is humanity itself being deceived about aliens? Or maybe something else is happening? So many lies have been written and revealed about UFOs that if ...

Three declassified videos show a strange object with unusual characteristics, in this clip from Ancient Aliens. #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full ...

There are many who think that we might not be alone in this big universe, and chances are that they’re not wrong. Be you a fervent believer in conspiracy theories or in extraterrestrial green people, you might be surprised at how often weird stuff pop up that support the idea of aliens. From ...

Ancient Astronaut Theorists question who built Nan Madol after an artificial irrigation system is discovered, in this clip from Season 15, "The Mystery of Nan Madol." #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: ...

Lloyd Pye is at the forefront of research into human origins from alien sources. His Intervention Theory proposes that human DNA is not of this world. Using remarkable scientific analysis, Lloyd Pye makes a strong case in this presentation filmed at the International Scientific and Metaphysical ...

Ancient Astronaut Theorists believe a group of airmen encountered a UFO from the future, in this clip from 18, "The Time Benders." #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Find out more about the show ...

Ancient Astronaut Theorists believe a massive pyramid located in Teotihuacan, Mexico could commemorate the arrival of extraterrestrials, in this clip from Season 18, "Decoding the Dragon Gods." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your ...

UFO researcher, Albert K. Bender, had to halt his studies after being visited by strange entities dressed in all black, in this clip from Season 18, "The Shadow People." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite The HISTORY Channel ...

After receiving multiple reports of strange shadow people sightings, Ancient Astronaut Theorists believe these beings could've been produced from alien technology, in this clip from Season 18, "The Shadow People." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date ...

While in restricted airspace, pilots spot an unidentified object performing unusual maneuvers unlike any other military aircraft, in this clip from Season 18, "Alien Air Force." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite The HISTORY ...