The Boeing X-37 is America’s secretive space plane, operated by the U.S. Space Force for missions that remain largely classified. Designed to launch atop a rocket and return like a shuttle, it can ...

The US Space Force’s classified spacecraft, the X-37B, has safely returned to Earth after an awe-inspiring 434 days in orbit. This record-breaking mission has led to a whirl of speculation and ...

Betelgeuse, the brilliant red star marking Orion's shoulder, has long been suspected of harboring a secret. I have to confess ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

"Capturing another satellite like this in an Earth-observation image is extremely rare." One of SpaceX's broadband-beaming Starlink satellites has been captured overflying a top-secret airbase in ...