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 ...

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." ...

Ancient Astronaut Theorists believe that Prince William might’ve investigated and researched a classified UFO phenomenon, in this clip from Season 18, "The World on Alert." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and next day on The HISTORY Channel website at ...

Become a Member! https://www.youtube.com/channel/UCuBPlZTF6TGO0g58QgcgsxA/join Upload your UFO Video To Youtube, Then Copy Paste The Link To My Email! cousinsbrothersproductions@gmail.com Keep Your Eyes on the Skies! We are not Alone! Special Thanks to Eric Cavey ...