The U.S. Space Force's robotic space plane X-37B returned to Earth has returned to Earth after spending more than 434 days in orbit on a classified mission. This was the seventh mission for the X ...

From the lunar landing to the launch of the Hubble Space Telescope, here are some bold space missions in history.

secretive space plane unexpectedly returned to Earth this week after more than a year in space. It was an unusually short mission, but one that tested new flight patterns for the spacecraft.

You’ve Heard of the X-37B, Right? If you’ve ever followed spaceflight news, you’ve probably heard of the X-37B, the secretive ...

This photo provided by United States Space Force the X-37B Orbital Test Vehicle-7 (OTV-7), the U.S. Space Force’s dynamic unmanned spaceplane, successfully deorbited and landed at Vandenberg ...