Ancient Astronaut Theorists investigate Nomali statues and their connection to sky stones, in this clip from Season 18, "Ancient Aliens...

Ancient Astronaut Theorists believe a massive pyramid located in Teotihuacan, Mexico could commemorate the arrival of extraterrestrials,...

Ancient Astronaut Theorists believe that Prince William might've investigated and researched a classified UFO phenomenon, in this clip...

Ancient Astronaut Theorists believe that the Rudston Monolith possesses unusual powers that spark strange phenomenon, in this clip from...

On September 12th, 1991, NASA captured strange extraterrestrial activity but has since kept it hidden, in this clip from Season 4, "The...

Everyone's heard of Area 51. However, there's an underwater facility that's also highly secretive. Perched on the cusp of The Bermuda...

The notion of a universe inhabited by aliens can be found just about everywhere in American popular culture. But could mankind really...

Documented eyewitness accounts of strange UFO activity at the Solomon Islands has led to a theory that an underwater alien base is...