Generally, states with large populations and wide-open skies reported the highest number of UFO sightings in the U.S.

"Maybe the best hypothesis is that aliens beamed him up to the mothership," said the wife of Major General William Neil McCasland.

Artificial intelligence is going to make it easier to spot whether a bird, a plane or an otherworldly creature is in the sky, Canada's top UFO expert says, as Canadians continue to report sightings of ...

The Proof Is Out There” is back this Friday, March 6. Watch the season 6 premiere at 10 p.m. ET on the History Channel.

Presidential commentary on UFOs didn’t begin in the age of podcasts and social media. For more than 200 years, the question ...

Nope.

Past classified reviews looking for alien life have found stranger things about life in Washington.

When a mysterious crescent appeared over Moscow in 1967, alien enthusiasts were unaware they were actually tracking a 3-megaton weapon designed to bypass American radar.