A top U.S. Air Force general linked to the military's alleged research on UFOs has gone missing – and experts are calling his ...

Amy Eskridge's death marks the eleventh person tied to US space or nuclear information who has either disappeared or died ...

The disappearances and deaths of 10 government workers tied to nuclear or space technology have sparked speculation online.

Publishers risk unwittingly putting out books generated with artificial-intelligence tools. Authors and readers are ...

On 8 April, civilian onlookers witnessed an unusual aerial display near an Ohio military installation long steeped in ...

A string of unexplained deaths and disappearances among elite US scientists tied to NASA, Los Alamos and other national ...

What is the Star Trek franchise without the Starship Enterprise? Let's take a look at all of the iterations of the iconic ...

Mysterious deaths and disappearances of top U.S. scientists spark fears of foreign espionage, raising national security ...

With big names like Steven Spielberg and Christopher Nolan at the helm, the greatest hard sci-fi films will blow audiences' ...

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and ...