The leader of the Pentagon’s UFO identification office, who recently speculated about the potential for an alien “mothership” in the solar system and “extraterrestrial technological probes” visiting ...

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 and recordings.

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

Trump administration science advisors are offering conventional explanations for some of the sightings of mysterious orbs of ...

The National UFO Reporting Center reports there have been over 2,400 UFO sightings in Tennessee since 1995. Nashville, ...

The volume includes 40 new files, including 19 videos.

Stacker compiled a ranking of cities with the most UFO sightings in Minnesota using data from the National UFO Reporting Center.

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

Researchers say it’s impossible to reach conclusions about UFO videos because information has been redacted.

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

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