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

The “Invasion of Washington” occurred over two weekends in July 1952.

Steven Spielberg's 1977 classic tapped into anxieties about the US government hiding UFO information from the public. It ...

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

There are a lot of documentaries about UFOs that don't devolve into sensationalist conspiracy theories. These are the best ones.

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 ...

An audio tape reportedly exists of a UFO briefing between Air Force officials and scientists in 1952.

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 ...

A third batch of declassified UFO files were released by the Pentagon Friday. The latest such release in the Trump administration's new wave of public disclosure of Unidentified Anomalous Phenomena ...

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

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