If extraterrestrials are watching over humanity, Ancient Astronaut Theorists suggest the next great global catastrophe could be caused by our heavenly ancestors in this clip from Season 9, "The Great Flood". #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! Ancient Astronaut Theorists claim that extraterrestrials influenced the outcome of the Civil War and made believers out of ...

Like Ancient Aliens? Catch our new series The UnXplained with William Shatner, Fridays at 10/9c after Ancient Aliens! Archaeologists discovered remnants of a gigantic pyramid at Indonesia's megalithic site, Gunung Padang, which Ancient Astronaut Theorists believe is evidence of extraterrestrial ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! Some pioneering scientists have discovered a link between the electromagnetic field surrounding the earth and the location of ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! In the book of Genesis, The Tower of Babel is a story about humanity's destruction handed down by the Gods and Ancient ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! Evidence suggests a powerful explosion in the ancient city of Lanka was an extraterrestrial intervention event in this clip ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! Over 300 giant stone spheres have been found in the jungles of Costa Rica. According to legend, these were cannonballs from the ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! Massive obelisks filled with quartz were erected across the ancient world. Ancient Astronaut Theorists suggest that these ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! Investigating how a crystal skull may hold more information than a supercomputer in this digital exclusive from Ancient Aliens. ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! A look at how the Giza pyramids might have once functioned as a power plant in this digital exclusive from Ancient Aliens. ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! Nikolai Tesla credited his many inventions to his ability to realize them entirely in his mind leading Ancient Astronaut ...

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More! There is a mountain in western Tibet that Ancient Astronaut Theorists believe could be a nuclear power plant used by aliens as ...