Check out these unbelievable UFO sightings in this compilation from The UnXplained. Watch your favorite episodes of The UnXplained, and stay up to date on all of your favorite The HISTORY Channel shows at history.com/schedule. Check out more full episodes of The UnXplained on YouTube here- ...

In 1849, ancient Babylonian Star Catalogs were discovered in Iraq, providing proof of celestial knowledge given by extraterrestrials, in this clip from Season 5, "Destination Orion." #AncientAliens Subscribe for more from Ancient Aliens and other great shows from The UnXplained Zone: ...

Gulf Breeze Florida is a hotbed of UFO and USO sightings. In 1980 Ed Walters captured some of the most compelling evidence investigators have ever seen. See more in this clip from Season 2, "Underwater Alien Bases." #UFOHunters Subscribe for more from UFO Hunters and other great shows from ...

Is it possible that the bones of giants have been hidden from the public? See more in this scene from Season 4, Episode 22, "Mysterious Monoliths." Watch all your favorite episodes of The UnXplained, and stay up to date on all of your favorite The HISTORY Channel shows at history.com/schedule. ...

A large bird-like creature is rumored to have been spotted in the 1800s in Tombstone, Arizona. See more in this scene from Season 4, Episode 20, "The Weird Wild West." Watch all your favorite episodes of The UnXplained, and stay up to date on all of your favorite The HISTORY Channel shows at ...

Experts look into the mystery behind the Alaska Triangle. See more in this clip from Season 4, "Beyond the Bermuda Triangle." Watch all new episodes of The UnXplained, streaming now, on The HISTORY Channel website at http://history.com/schedule. #TheUnXplained Subscribe for more from The ...

Check out these top moments from 2022, in this The UnXplained compilation. Watch all new episodes of The UnXplained, streaming now, on The HISTORY Channel website at http://history.com/schedule. #TheUnXplained Subscribe for more from The UnXplained and other great The HISTORY Channel ...

Researchers were baffled when witnesses discovered an extraordinary discovery of 60-foot-long bones. See more in this clip from Season 4, "Real Life Monsters." #TheUnXplained Watch all new episodes of The UnXplained, streaming now, on The HISTORY Channel website at ...

Researchers in Geneva, Switzerland make an incredible discovery of exoplanets that may be home to extraterrestrial life. See more in this clip from Season 3, "The Search For Extraterrestrial Life." #TheUnXplained Watch all new episodes of The UnXplained, streaming now, on The HISTORY Channel ...

NASA's Scientists Claimed Alien Encounter | The UnXplained Files An unidentified flying object, more recently renamed by US officials as a UAP, is any perceived aerial phenomenon that cannot be immediately identified or explained. On investigation, most UFOs are identified as known objects or ...

While constructing the international space station, astronauts capture a strange object on camera, which raises suspicions around the world. See more in this clip from Season 3, "The Search For Extraterrestrial Life." Watch all new episodes of The UnXplained, streaming now, on The HISTORY ...

While examining the remains of a shipwreck, archeologists come across an astonishing ancient computer, in this clip from Season 3, "Wonders of the Ancient World." New episodes on Fridays at 9/8c Watch all new episodes of The UnXplained, streaming now, on The HISTORY Channel website at ...