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.

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

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

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

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

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 ...

Mick West, a UFO investigator, suggests using modern tools for analysing UAP and suspected alien sightings, and ruling out ...

Pols and experts claim that there’s a long-unheard secret tape of an “Invasion of Washington” UFO briefing – and they say the ...

In 1977, Brazil witnessed mysterious UFO encounters known as 'Chupa-Chupa', involving unexplained injuries and a military ...