Check out these life altering alien crashes. See more in this Ancient Aliens compilation. Watch all new episodes Fridays 9/8c; Stream Next Day, and stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more ...

In 1952, a terrifying UFO soared over Salem, Massachusetts, in this clip from Season 4, "Wooly Mammoth Sighting, Ohio Bigfoot Howl, and Killer Robot." Watch all new episodes of The Proof Is Out There, Fridays at 10/9c, and stay up to date on all of your favorite The HISTORY Channel shows at ...

Countries all over the world are experiencing strange UFO sightings on major mountains. See more in this clip from Season 21, Episode 6, "The Top Ten Mysterious Mountains." Watch all new episodes Fridays 9/8c; Stream Next Day, and stay up to date on all of your favorite shows on The HISTORY ...

Check out these most mysterious theories. See more in this Ancient Aliens marathon. Watch all new episodes Fridays 9/8c; Stream Next Day, and stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from ...

Check out these groundbreaking time travel theories. See more in this Ancient Aliens compilation. 1) 0:00 2) 17:36 Watch all new episodes Fridays 9/8c; Stream Next Day, and stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. ...

Could these mysterious flying objects be extraterrestrials? See more in this #Short from Ancient Aliens. Subscribe for more HISTORY: http://histv.co/SubscribeHistoryYT Check out exclusive HISTORY content: History Newsletter - https://histv.co/newsletter Website - https://histv.co/History ...

Check out these mysterious powers from above. See more in this Ancient Aliens marathon. Watch all new episodes Fridays 9/8c; Stream Next Day, and stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more ...

Throughout the 20th century, the world has seen countless stories related to UFOs. Incidents like the Battle of Los Angeles (1942), Roswell (1947), and Rendlesham Forest (1980) remain unsolved. Now, we take a closer look at the details behind these stories. From the ancient civilizations of ...

Check out these mysterious sites. See more in this Ancient Aliens marathon. Watch all new episodes Fridays 9/8c; Stream Next Day, and stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient ...

Security camera catch an inexplicable UFO on tape, in this scene from Season 4, "The Return." New episodes of The Secret of Skinwalker Ranch, Tuesdays at 10/9c. Stay up to date on all your favorite The HISTORY Channel shows at http://history.com/schedule. Check out more full episodes of The ...

Check out these secret messages and more. See more in this Ancient Aliens marathon. New Season Fri., Feb. 7 at 9/8c; Stream Next Day, and stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from ...

Get ready for a journey that will leave you speechless! In this mind-blowing video, we've compiled the most astonishing UFO encounters caught on camera. From eerie lights in the sky to bizarre alien sightings, these real-life UFO encounters will make you question everything you thought you knew ...