He estimates hundreds of incidents occur annually that baffle military leaders.

These shocking UFOs have been spotted over some of the biggest cities in the U.S. See more in this compilation from The Proof ...

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

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

In early 2008, residents in and around the small central Texas town of Stephenville experienced something unexplainable: UFO ...

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

The Pentagon on Friday released a third batch of vintage classified files related to “flying saucers” and other unidentified anomalous phenomena — better known to most Americans as unidentified flying ...

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

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 War Department Friday. The artist renderings of the encounters “near a ...

Buzz Aldrin is quoted as having made three observations, one of which was of something with a "sizeable dimension." ...

A campaigner is calling on the government to resume investigations into alleged encounters.