Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Just months after 9/11, strange messages started appearing across U.S. military computers: “Your security system is crap.” ...

For your extraterrestrial viewing needs, Stacker ranked the top 30 alien movies, according to their IMDb user rating.

Having considered more than 1,000 cases, this analyst of unidentified anomalous phenomena has honed a rational process for ...

For centuries, religious traditions like Catholicism have viewed extraterrestrial life as a valid theological topic rather than a contradiction, openly discussing the concept for generations.

Plane watchers are keeping an eye on the sky Thursday after an aircraft registered as SAUCER1 took flight from Area51 just ...

Directed by Steven SpielbergAn ordinary lineman becomes obsessed with mysterious visions after witnessing a UFO, while a ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

These forgotten sci-fi shows are practically flawless, including the game-changing space opera Babylon 5 and the underrated ...

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

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...