Most UFO theories reach for outer space. The cryptoterrestrial hypothesis reaches down instead: it proposes that flying ...

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

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 ...

The Pentagon released a fourth tranche of UFO files on Friday, disclosing the batch of 40 new files, of which 19 are videos.

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

'Interdimensional' mostly refers to entities from parallel dimensions; they don't travel vast distances, but they are believed to manipulate space-time. Stephen Leonardi: Pexels The long-promised ...

Steven Spielberg's 1977 classic tapped into anxieties about the US government hiding UFO information from the public. It holds the key to the director's new film, Disclosure Day.

The latest tranche of government UFO documents includes a report of an anomalous object hovering over a Texas nuclear weapons assembly plant in 2015. Author Miguel Sancho tells “Elizabeth Vargas ...

“Disclosure” has become a cult word. It shouldn’t be, since all it means, technically, is to reveal something. But the new wave of alien conspiracy theorists have made “disclosure” into a teasingly ...

Scene for scene, the movie is a vigorous and diverting ride. Yet coming after the mountains of real UAP footage we've seen, "Disclosure Day" never gives you the contact high of awe that "Close ...