The X-37B, a reusable space plane about a quarter the size of the Space Shuttle, has spent over 4,200 days in orbit since its first launch in 2010.

NASA and SpaceX's Crew-11 mission is made up of two U.S. astronauts, one from Japan and a Russian cosmonaut. They'll be ...

The uncrewed X-37B Orbital Test Vehicle launched from Cape Canaveral on Thursday evening aboard a SpaceX Falcon 9 rocket.

When will Sierra Space's winged vehicle, Dream Chaser, finally take flight? Unfortunately, it's still not clear. Almost ...

SpaceX launched the Crew-11 on Aug. 1, sending four astronauts to the International Space Station on the record-breaking sixth flight of its Crew Dragon Endeavour spacecraft.

The Space Force's secretive space plane, the X-37, is headed back to the launch pad. Here's what we know.