NASA and SpaceX’s mission to relieve Starliner astronauts Butch Wilmore and Suni Williams, who have been in orbit for nine months, is set to lift off Friday. A Falcon 9 rocket is scheduled to launch ...

The U.S. Space Force's unmanned spaceplane exited orbit after 434 days and landed at Vandenberg Space Force Base ...

A new study finds that climate change is already causing all sorts of problems on Earth, but soon it will be making a mess in orbit around the planet too.

The seventh flight of the reusable space probe X-37B ends with a successful landing in California. The largely secret mission ...