Alien planets across the Milky Way reveal how strange, hostile, and spectacular other worlds can be, from the nearby promise ...

Intelligence veteran reveals the classified UFO findings the CIA buried ...

The White House video featuring a flying saucer and border fence quickly sparked outrage online.

Declassified FBI files detail 1950s claims that aliens viewed humans as the lowest life form, revealing how US agents investigated extraordinary reports without confirming them.

Buzz Aldrin is quoted as having made three observations, one of which was of something with a "sizeable dimension." ...

Disclosure Day, the upcoming sci-fi movie from director Steven Spielberg, revolves around a plot to prove that aliens exist.

The question of whether these unidentified objects are really alife life has become increasingly mainstream ...

Newly-released material from the so-called UFO files includes reports of unexplained green orbs, discs and fireballs zooming ...

"Wouldn’t it be wonderful for people to know all of this is true," the Oscar-winning director says in the new trailer.

The files include reports of stalled vehicles, glowing objects and radar sightings.