The X-37B space plane, recently returned from a 430+ day mission, is preparing for its eighth launch. Scheduled for no ...

The Space Force's mysterious X-37B space plane is set to lift off from Kennedy Space Center this week. Here's what we know ...

During its secretive mission, the X-37B will test new laser communications gear and a "quantum" navigation sensor.

The latest mission of the U.S. Space Force's mysterious X-37B space plane is underway.The robotic X-37B lifted atop a SpaceX ...

According to Boeing, the X-37B has a body and landing operation similar to the Space Shuttle, however it is smaller, measuring in at just one-fourth the size of the shuttle.

The X-37B, a reusable space plane about a quarter the size of the Space Shuttle, has spent over 4,200 days in orbit since its first launch in 2010. The mysterious Space Force space plane is headed ...