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 ...

Massive object travels at 500 MPH! See more in this scene from Season 20, Episode 8, "The UFO Superhighway." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens and other great The ...

DARING Experiment At The Skinwalker Ranch Reveals Unbelievable UFO Sightings! Cameron Fugal planned a flashy trip with his friend Brock Wilson, who was going to fly another helicopter to a mysterious ranch known as "the triangle." Brock was thrilled to bring his fancy helicopter along. They ...

Throughout the world there are mysterious ancient stones shaped into perfect spheres. Many of them show clear evidence of being manmade and some completely defy explanation. Could the mystery of the stone spheres provide clues about humankind's alien past? See more in Season 20, Episode 10, ...

Across the globe, monumental stone figures silently bear witness to a forgotten era. See more in 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 from ...

Check out our favorite moments from The Proof is Out There in this 2023 compilation! 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 submitting ...

Would it have been physically possible for the ancient Egyptians to build the pyramids? 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 Subscribe for ...

After 12 years of excavations, archaeologists make a shocking discovery. See more in this scene from Season 2, Episode 11, "Extraterrestrial Pyramids." 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 ...

Prepare to uncover the enigmatic secrets of Area 51 through the lens of Ancient Aliens. Delve into the heart of one of the world's most secretive locations as ancient astronaut theorists decode the mysteries surrounding extraterrestrial encounters, top-secret experiments, and otherworldly ...

Is it possible that shadow people, spirits, poltergeists, and other enigmatic entities are rooted in reality? See more in this scene from Season 2, Episode 12, "Aliens and the Unseen." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows ...

Governments are openly investigating UFO and extraterrestrial sightings. See more in this compilation from Ancient Aliens. Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens and ...