SpaceX has pulled off another successful launch for the U.S. military, sending a classified payload into orbit atop its ...

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 ...

A not-so-secret, secret reusable spaceplane operated by the United States Space Force is scheduled to lift off for its eighth mission on Thursday, Aug. 21, from the Kennedy Space Center in Florida.

A U.S. spaceplane will head to the heavens next month to test a quantum sensor that could help navigation in orbit without GPS, and to demonstrate new methods of space-based communications, the Space ...