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

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

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

The newly released records span from 1948 to 2025 and include reports, videos and images tied to unresolved unidentified ...

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...

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

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

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

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

As a child, Steven Spielberg stared at a meteor shower and began his love affair with the sky. The director of the 1977 classic "Close Encounters of the Third Kind" returns with "Disclosure Day," ...