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

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO phenomena continue to reveal unfounded human assumptions.

NASA's relationship with UFOs has evolved alongside broader changes in public and government interest in unexplained sightings.

A 1948 secret military report and reports of UFO activity at nuclear missile sites suggest a history of government ...

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

Avi Loeb’s White House panel has asked the Pentagon for videos and files on unexplained aerial sightings ...

Pilot Kenneth Arnold took flight from Chehalis, Washington in his single-engine airplane, looking for a missing military aircraft that had crashed. What he found ...

Michael Sheen is set to star in a Welsh comedy film about a UFO sighting - after sharing his own encounter with "a phalanx of ...

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

People gathered at the Kecksburg VFD UFO Festival hoping for a close encounter.

The National UFO Reporting Center reports there have been over 2,400 UFO sightings in Tennessee since 1995. Nashville, Knoxville and Memphis are among the top UFO hotspots.