Alarmed defense experts believe these UFOs may be highly advanced, next-generation spy drones, raising concerns about ...

"This is a detective story that can be resolved with better data," Harvard astrophysicist Avi Loeb told Newsweek.

Internet-famous UFO stories so wild they may just be true Alien and UFO sightings have been anomalies for decades. While the ...

The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn ...

No bombshells so far in the latest Pentagon batch of declassified Unidentified Anomalous Phenomena files. But they show the ...

Newly declassified Pentagon UFO files have reignited debate over a possible alien presence on the Moon after a previously ...

Americans "deserve the truth," a U.S. congressman has told a press conference as part of a wider transparency campaign.

There has been incredible interest in the UFO files released by the U.S. government. But even these documents and videos aren’t enough proof for everyone.

A former CIA-linked physicist's comments about 'four alien species' have reignited UFO conspiracy theories online.

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.

ON AN August evening in 1995 there was a worldwide broadcast of an 18 minute, grainy black and white film that caused a sensation. According to the report it had been kept secret by the US ...