Check out 5 MORE mysterious UFO sightings that just can’t be explained, in this The Proof Is Out There compilation.

The Pentagon on Friday released a new group of documents and videos related to UFOs, or UAPs, with 72 more documents, images ...

National attention on UFOs has shifted in recent years, especially after the US government in the past decade has released ...

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...

Christopher Mellon, a former high-ranking official in the U.S. Defense Department, says U.S. military leaders are baffled by ...

Pilot Kenneth Arnold took flight from Chehalis, Washington in his single-engine airplane, looking for a missing military ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.