Whispers of a classified space fleet have circulated since the 1980s — massive motherships and scout craft said to guard Earth from above. Could Solar Warden be real?

For the first time, we’re seeing an image from the record-breaking US military space plane while in Earth orbit. Over the weekend, the US Space Force shared a photo taken by the spacecraft X-37B ...

The length of the mission wasn't disclosed, but a previous flight lasted years. A not-so-secret, secret reusable spaceplane operated by the United States Space Force is scheduled to lift off for its ...

The U.S. Space Force's X-37B space plane is set to launch its eighth mission from Kennedy Space Center. The mission, designated USSF-36, will focus on testing laser communications and a new navigation ...

Far beyond the clouds and the blue sky, a quiet but tense battle between space strike forces is playing out. Not with bullets or missiles—but with satellites. Over the last several years, Russia has ...

The photobomber is a satellite — specifically, one of SpaceX 's Starlink internet satellites, which Maxar identified as ...

A former US Marine has claimed he spent 17 years of his career on MARS. The ex-naval infantryman, who uses the pseudonym Captain Kaye, says he was posted to the Red Planet to protect five human ...

A U.K. start-up has shocked the space exploration community after unveiling plans to use a novel nuclear fusion propulsion system to power an orbital fleet of reusable "alien-like" rockets, known as ...