Jordan Flowers claims Russia and China may be reverse-engineering alien technology, raising national security concerns.

"Project Hail Mary" really pushes the limit when it comes to non-humanoid aliens. But researchers posit that real aliens ...

Since last Wednesday, the world has seen an increase in seismic activity — seven in five days. First, there were the powerful ...

THE last-ditch search for the missing Malaysia Airlines jet will be extended for another year, more than a decade after it ...

The renowned Egyptologist and former Egyptian Minister of Antiquities, Zahi Hawass, responds to periodically raised ...

In 1988, the Soviet Union launched two of its most ambitious spacecraft ever built not toward Mars itself, but toward one of ...

On Thursday, Governor Ron DeSantis announced the closing of Alligator Alcatraz, the highly controversial immigration ...

The Pentagon released over a hundred newly declassified files related to UFOs (now officially referred to as Unidentified ...

Stacker compiled a collection of 70 images that show how the '70s changed the world. See photos of the decade's defining ...

On May 13, 1789, California’s Spanish Governor Pedro Fages, sent a letter marked “Confidential” to Comandante Jose Arguello ...

Robots have transitioned from science fiction to the frontlines, with Ukrainian forces reportedly using an armed robot and ...

Four wildly different machines reveal where American performance is now and where it’s headed next.