More questions arise as the team calls in the astronomical society to conduct another rocket launch experiment, in this clip from Season 3, "Scoped Out." #TheSecretofSkinwalkerRanch Subscribe for more from The Secret of Skinwalker Ranch and other great The HISTORY Channel shows: ...

Ancient Astronaut Theorists question who built Nan Madol after an artificial irrigation system is discovered, in this clip from Season 15, "The Mystery of Nan Madol." #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: ...

NASA releases a picture of the moon's craters that many believe to be created by an ancient interstellar civilization, in this clip from Season 1, "Ancient Sounds and Moon Mounds." #TheProofIsOutThere Subscribe for more from The Proof Is Out There and other great The HISTORY Channel shows: ...

Ancient Astronaut Theorists believe that the Bermuda Triangle may have been responsible for multiple mysterious disappearances, in this clip from Season 18, "The Time Benders." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite The HISTORY ...

Luis Elizondo looks into the alarming pattern of UFO sightings near nuclear power plants and nuclear defenses. He meets with new military eyewitnesses to further explore the connection between the UAP activities and the US nuclear assets. Special Agent In-Charge Luis Elizondo and former Deputy ...

The team calls in a few experts to conduct an experiment where rockets are launched into the air to stimulate ariel phenomena, in this clip from Season 3, "Tic Tac 2." #TheSecretofSkinwalkerRanch Subscribe for more from The Secret of Skinwalker Ranch and other great The HISTORY Channel shows: ...

An eyewitness in England spots a group of strange sheep possibly being manipulated by extraterrestrial forces, in this clip from Season 2, "THE CREEPING HORROR AND VIRAL CAR JUMPERS." #TheProofIsOutThere Subscribe for more from The Proof Is Out There and other great The HISTORY Channel shows: ...

Ancient Astronaut Theorists believe the sacred temple complex of Angkor Wat was constructed to replicate a star constellation, in this clip from Season 18, "Decoding the Dragon Gods." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite The ...

A resident captures a strange orb hovering over a sacred temple in Jerusalem, in this clip from Season 2, "DOME OF THE ROCK INCIDENT / SOLWAY SPACEMAN." If you are interested in submitting videos or other content to be featured on Season 2 of The Proof Is Out There, head to ...

Researchers believe they’ve discovered artificial structures on Mars, home to extraterrestrial civilizations, in this clip from Season 3, "Mysteries of Mars." #TheUnXplained Subscribe for more from The UnXplained and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT ...

In Australia hundreds report seeing two twin light streaks tear open the sky, in this clip from Season 2, "THE NIGHTCRAWLER AND THE BEAST IN THE TREE." #TheProofIsOutThere Subscribe for more from The Proof Is Out There and other great The HISTORY Channel shows: ...

Scientists at Cornell University come across evidence of multiple advanced extraterrestrial civilizations, in this clip from Season 3, "Apocalypse When?" Watch all new episodes of The UnXplained, Fridays at 9/8c, and stay up to date on all of your favorite The HISTORY Channel shows at ...