Five decades on, true believers and skeptics continue to debate what occurred in the Apache-Sitgreaves National Forest in central Arizona on Nov. 5, 1975.

But what if the most clandestine intelligence program in U.S. history was shut down not because it failed, but because it had ...

This image shows Buzz Aldrin standing next to the American flag that he and Neil Armstrong planted on the lunar surface.

For 27 months, Las Vegas was UFO central. A secret program, known as AAWSAP, was created in 2008 with support from Nevada ...

Two exhibitions on view in New York delve into artists' long-standing fascination with the unknown, and what it says about ...

For weeks, online prediction markets have been tracking a highly specific question: Will Donald Trump formally declassify ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

ALIEN hybrid lifeforms live among us and Donald Trump has been “fully briefed” on their existence, a retired US Air Force ...

A sudden shift in a popular prediction market has experts and the public both believing the world is just days away from ...

A sudden leap in prediction-market odds has cast fresh attention on the prospect of UFO file disclosure in the US. The spike ...

A former Air Force major turned whistleblower has claimed President Trump now has the information to change the entire world ...

A former Israeli space chief's claims about an alien galactic federation have resurfaced, sparking a viral debate and renewed ...