Instead it’s likely the U.S. military’s X-37B space plane taking off for its latest mission. The uncrewed plane, operated by U.S. Space Force, is set to launch Thursday, Dec. 28 in the evening.

On the X-37B’s last mission, which spanned 908 days in orbit, the space plane lifted off aboard a SpaceX Falcon 9 rocket. Before that, the vehicle rode to space five times on United Launch ...

The U.S. military's X-37B space plane is about to begin a series of novel maneuvers, according to a rare official update on the spacecraft.

The X-37B space plane is one of the US military’s most intriguing and secretive projects. The spacecraft will hitch a ride on SpaceX’s Falcon Heavy rocket no sooner than Tuesday.

A SpaceX Falcon Heavy rocket carrying a U.S. Space Force X-37B space plane stands atop Pad 39A of NASA's Kennedy Space Center in Cape Canaveral, Florida ahead of a Dec. 11, 2023 launch.

A planned Monday night launch of the U.S. military's secretive X-37B robot spaceplane on its seventh mission to orbit, and its first flight atop a SpaceX Falcon Heavy rocket, was postponed for at ...