Ancient astronaut theorists believe that the ancient Iranian prophet, Zarathustra, followed commands from alien entities to guide the culture, in this clip from Season 5, "Prophets and Prophecies." Watch all new episodes of Ancient Aliens, returning soon, and stay up to date on all of your ...

The search continues with new episodes of In Search Of Fridays at 10/9c! Some Ancient Astronaut Theorists believe alien life could be found deep within the earth's most mysterious caves in this clip from Season 9, "Forbidden Caves". #AncientAliens Subscribe for more from Ancient Aliens and other ...

Back at the command center, the team calls Brandon Fugal to share their mysterious encounter with a rectangular-shaped object that suddenly vanished, in this clip from Season 2, "Carved in Stone." Watch all new episodes of The Secret of Skinwalker Ranch, Tuesdays at 10/9c, and stay up to date on ...

Watch all new episodes of Ancient Aliens, returning February 12 at 9/8c, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Mount Olympus, Greece, is believed to be home to ancient Gods known as Olympians. Theorists believe these beings were ...

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 http://history.com/schedule. Through an incredible technological breakthrough, experts have discovered everlasting synthetic DNA found in rare artifacts, in this ...

Watch all new episodes of The Proof Is Out There, Tuesdays at 10/9c, and stay up to date on all of your favorite History Channel shows at https://history.com/schedule. Expert UFO investigator, Rich Hoffman, recalls his experience conducting an extensive investigation into a mysterious UFO ...

Applying the laws of life on Earth to the rest of the galaxy, this series blends science fact and fiction to imagine alien life on other planets. Watch Alien Worlds, only on Netflix December 2: https://www.netflix.com/title/81026141 SUBSCRIBE: http://bit.ly/29qBUt7 About Netflix: Netflix is ...

Journalist Tony Harris, along with forensic specialists, investigates a jaw-dropping viral video of UFOs captured in Miami, in this clip from Season 1, "Escape From Monkey Island." #TheProofIsOutThere Subscribe for more from The Proof Is Out There and other great HISTORY shows: ...

Siblings Randy and Glynda In 1994, Randy and his sister, Glynda, appeared on the "The Oprah Show" to claim they were visited by aliens during their childhood. The siblings recalled their terrifying encounters and explained why they genuinely believe they were abducted by extraterrestrials. For ...

Stay up to date on all of HISTORY's latest premieres at http://history.com/schedule Gulf Breeze Florida is a hotbed of UFO and USO sightings and in 1980 Ed ... source

US Navy pilot LT. Ryan Graves goes on the record with his firsthand account of a UFO sighting while flying training missions over the Atlantic ocean in this clip ... source

Stay up to date on all of HISTORY's latest premieres at http://history.com/schedule Government documents reveal secret government agencies built aircraft ... source