Suni Williams and Butch Wilmore headed home in a SpaceX Crew Dragon capsule after problems with a Boeing vehicle set in ...

The spectacular rescue of two astronauts from the ISS by Musk’s SpaceX is the stuff of great movies. But not this time.

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

The United States Space Force’s secretive X-37B space plane touched down to earth on Friday after spending 434 days in orbit ...

CAPE CANAVERAL, Fla. (AP) — The U.S. military’s classified mini space shuttle returned to Earth on Friday after circling the ...

A decades-old astronomical mystery has finally been solved—an enigmatic X-ray signal emanating from deep space turns out to ...

Astronomers have been recording the signal for more than four decades, but this is the first time they've nabbed its origin.