Vanity Fair reports from the Capitol Hill conference, where members of a sprawling community of national security experts and alien conspiracists gathered.

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” – Arthur C.

From insects to the moon, people have mistaken very Earthly phenomena for UFOs many times.

Internet-famous UFO stories so wild they may just be true Alien and UFO sightings have been anomalies for decades. While the existence of extraterrestrials has become a laughingstock, with SNL making humorous alien sighting skits

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

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.

Pols and experts claim that there’s a long-unheard secret tape of an “Invasion of Washington” UFO briefing – and they say the public could hear it very soon. A tape recording a 1952 conversation between Air Force officials and scientists on unidentified flying objects is soon to be released,

Steven Spielberg says decades of UFO reports and eyewitness accounts convinced him to believe the believers while promoting his film "Disclosure Day."