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

"This is a detective story that can be resolved with better data," Harvard astrophysicist Avi Loeb told Newsweek.

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

If you're a skeptic, these UFO sightings will convince you that the truth is out there—and it may not be from Earth.

From the Navy’s infamous Tic-Tac encounter to thousands of recent reports, believers say some of the strangest UFOs may be ...

Internet-famous UFO stories so wild they may just be true Alien and UFO sightings have been anomalies for decades. While the ...

The Pentagon on Friday released a third batch of vintage classified files related to “flying saucers” and other unidentified ...

The latest batch of UFO files from the Pentagon includes artistic renderings by credible witnesses.

A series of UFO sightings by federal officials in the western US are detailed in striking illustrations made public by the ...

Steven Spielberg's new blockbuster coincides with real-world disclosures about the government's investigation of unidentified ...

Kansas City has long been a hotbed of activity, says Margie Kay, director of the Missouri chapter of the Mutual UFO Network ...