Journalist Tony Harris will present compelling evidence of UFO sightings from around the globe in "The Proof Is Out There: Alien Edition." ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself?

Tony Harris and his team investigate if a glowing orb spotted in Phoenix is tied to one of the most legendary UFO incidents ever recorded in a new episode of "The Proof is Out There: Alien Edition." ...

The popular spinoff docuseries The Proof Is Out There: Alien Edition returns to the History Channel with its season two premiere Thursday, March 12 at 10/9c. During the season two premiere episode, ...