Could this layer of ash found beneath the Earth's soil be evidence of a major global event? See more in this scene from Season 2, Episode 8, "Aliens and Mysterious Texts." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. ...

Prominent world leaders including the British Royal Family, Japan's Defense Minister, the Chinese government, and Russia's former president have allegedly been investigating Unidentified Aerial Phenomena (UAPs) for years. Learn more in this scene from Season 2, Episode 9, "Aliens and World ...

The French government releases information regarding Unidentified Aerial Phenomena to the public. See more in this scene from Season 2, Episode 9, "Aliens and World Leaders." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. ...

Unidentified air conditions in China shock civilians and government officials alike. See more in this scene from Season 2, Episode 9, "Aliens and World Leaders." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens ...

Check out these shocking UFO sightings in this compilation from The Proof Is Out There. 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 http://history.com/schedule. If you are interested in ...

Prominent world leaders including the British Royal Family, Japan's Defense Minister, the Chinese government, and Russia's former president have allegedly been investigating Unidentified Aerial Phenomena (UAPs) for years. See more in this scene from Season 2, Episode 9, "Aliens and World ...

According to Francis Crick, human DNA was far too complex to have evolved over the history of planet earth, which led to theories of extraterrestrial interference with human DNA, in this clip from Season 17, "The Human Experiment." #AncientAliens Subscribe for more from Ancient Aliens and ...

Across the globe, monumental stone figures silently bear witness to a forgotten era. See more in this scene from Season 2, Episode 10, "Alien Effigies." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for ...

More than 7,000 years ago, the ancient Sumerians established what is considered the world's first civilization, and they credited their extraordinary achievements to their gods, the Anunnaki. See more in this scene from Season 20, Episode 7, "Secrets of the Sumerians." Watch your favorite ...

Ancient Aliens is counting down the top ten most devastating disasters ever documented that might have an otherworldly connection. See more in this scene from Season 20, Episode 6, "The Top Ten Alien Disasters." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at ...

After hearing incredible testimony about a UFO crashing on Skinwalker Ranch many years ago, the team makes a shocking discovery inside the rocky Mesa. See more in this clip from Season 5, Episode 10, "What the Gel?" New episodes of The Secret of Skinwalker Ranch coming soon. Stay up to date on ...

More than 7,000 years ago, the ancient Sumerians established what is considered the world's first civilization, and they credited their extraordinary achievements to their gods, the Anunnaki. See more in this scene from Season 20, Episode 7, "Secrets of the Sumerians." Watch your favorite ...