These eyewitnesses believe they've seen something out of this world. See more in this The Proof Is Out There compilation. Watch full episodes of The Proof Is Out There, and stay up to date on all of your favorite The HISTORY Channel shows at http://history.com/schedule. If you are ...

Pilots spot a bright ball over the city, in this scene from Season 4, Episode 17, "UFO Over Pakistan, Antarctic Dino-Whale, & Dead Bird Floating." 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 ...

Drone enthusiast captures more than clouds. See more in this clip from Season 1, Episode 5, "Alien Orbs and Lightning Balls." 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 ...

These shocking UFOs have been spotted over some of the biggest cities in the U.S. See more in this compilation from The Proof is Out There. #TheProofIsOutThere Subscribe for more from The Proof Is Out There and other great shows from The UnXplained Zone: ...

These top 5 UFO sightings are so out of the ordinary that it's difficult to make sense of them, check them out in this The Proof Is Out There compilation. #TheProofIsOutThere Subscribe for more from The Proof Is Out There and other great shows from The UnXplained Zone: ...