Artificial intelligence is going to make it easier to spot whether a bird, a plane or an otherworldly creature is in the sky, ...

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.

William Neil McCasland, 68, was reported missing after leaving his Albuquerque, N.M., home on foot Feb. 27.

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

Former Secretary of State Hillary Clinton faced questions regarding her knowledge of UAPs and transparency.

In the spring of 1967, a series of unusual sightings began to grip the ...

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 ...

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.

Nope.