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

A mysterious cluster of UFOs was spotted near a US military base long rumored to house UFO secrets, and once led by a missing ...

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

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

Explore the UFO mysteries J. Allen Hynek uncovered with Project Blue Book and how his findings challenged the Air Force's ...

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

If I were looking at Earth from a distance, I would be pretty disappointed,” theoretical physicist Avi Loeb says. “Most of ...

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

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

Another name has been added to the growing list of dead and missing scientists.