NASA explains why astronaut Barry "Butch" Wilmore suffered severe muscle loss after 9 months in space, highlighting microgravity's impact and the challenges of recovery.

Live updates from Monday afternoon's SpaceX NROL-69 mission that launched a Falcon 9 rocket from Cape Canaveral Space Force Station in Florida.

NASA astronaut Sunita Williams is undergoing rehab after a 9-month space mission, working to regain strength, balance, and ...

SpaceX rocket launch, Boeing Starliner astronaut splashdown scheduled for Tuesday afternoon A SpaceX Starlink rocket launch from Cape Canaveral and the splashdown return-to-Earth of Boeing Starliner ...

Following unexpected layoffs that shocked and dismayed some workers, NASA filed its Reduction in Force plan to the Office of ...