See tributes from show, his wife, and more.

The truth may be closer than you think. “The Proof Is Out There: Alien Edition” returns with brand-new episodes Thursday, Feb. 26 at 10 p.m. on History Channel, and this special edition is diving deep ...

Hosted by Tony Harris, the History Channel series, “The Proof Is Out There,” looks into various close encounters, exploring unexplained phenomena the likes of UFO sightings, run-ins with extinct ...

As the long-running HISTORY Channel series “Ancient Aliens” begins its live tour, we get a preview from series favorite Giorgio Tsoukalos, a leading expert on Ancient Astronaut Theory, which contends ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: History Channel ...