Did aliens really help to shape our history? See more in this two hour marathon from Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. #AncientAliens ...

There is evidence that suggests we experienced 20th century alien contact. In 1942, the Battle of Los Angeles involved the US military and Air Defense allegedly fighting a UFO. See more in Season 1, Episode 5, "The Return." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up ...

Has NASA found definitive signs of life on Mars that they're intentionally keeping from the public? See more in this compilation from Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel website at ...

Are we truly alone, or have extraterrestrials been guiding us all along? Learn more in this full episode marathon of "Ancient Aliens." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel website at ...

Dive into the ultimate exploration of humanity's greatest mysteries! Could the legendary powers of ancient gods and today's super-heroes be rooted in alien technology? Find out in this full episode marathon of "Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay ...

We revisit some of the most advanced civilizations the world has seen and their extraterrestrial connections in this three hour marathon from Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel ...

UFO Sightings and the Men In Black Mystery | Richard Doty In this video, former intelligence officer Richard Doty explores the connection between UFO sightings and the mysterious Men in Black. Discover real-life accounts of UFO encounters, alien activity, and what happens when these events are ...

In the 21st century, the search for extraterrestrial intelligence is ramping up like never before, with powerful new technologies allowing us to explore billions of stars across the universe. See more in this scene from Season 20, Episode 14, "The Search For Extraterrestrial Intelligence." ...

Why are humans so different from every other species on Earth? Did we evolve from ape--or is our intelligence the result of contact with an otherworldly source? See more in this 3 hour marathon from Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date ...

Follow along as Georgio travels around the world to get to the bottom of historians most pressing questions. See more in this compilation from Ancient Aliens. Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel ...

There's a strong magnetic field in the middle of the Pacific Ocean. 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 - ...

Avec 100 à 1000 milliards d’exoplanètes dans notre Voie lactée et environ 1000 milliards de galaxies dans l'univers, comment entrer en contact avec d'éventuelles formes de vie intelligente ? La question, sérieusement étudiée par la communauté scientifique, a donné lieu à divers programmes de ...