Check out 5 MORE mysterious UFO sightings that just can’t be explained, in this The Proof Is Out There compilation.

The Trump administration has tapped a Harvard professor with controversial theories about aliens to lead a team of scientists ...

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

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

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

It's World UFO Day, but questions about aliens, UFOs and what governments know about them remain. UFO researcher Jon Stewart ...

Another batch of “UFO Files” have been dropped by the Pentagon, featuring previously classified documents, audio and footage of strange objects in the sky. The new release comes two weeks after the ...

Secluded in the Nevada desert, the military base has long been associated with alien and UFO sightings. Here's the real history behind the conspiracy theories. UFO believers look for suspicious ...

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

The Pentagon on Friday released what it says are “never-before-seen files” on UFOs after President Donald Trump directed the agency to do so earlier this year.

New batch of previously classified government documents takes no position on origin of unidentified aerial phenomena (UAPs) ...