The space plane is also testing the effects of radiation and space on seeds, according to Space Force. The X-37 project is also important because the space plane is reusable. Each launch uses a ...

One of the Air Force's two secret X-37B space planes announced its re-entry to Earth with a loud sonic boom. The plane is part of the Air Force's X-37 program. Not much is known about this program ...

After nearly a year in orbit, the US Space Force's secretive X-37B is prepped to perform some ... if the service module on ...

That U.S. Space Force X-37B Orbital Test Vehicle (OTV-7 ... was placed in an orbit higher than any of the earlier space plane missions – into a highly elliptical high Earth orbit.

The U.S. and China recently launched secretive space missions using high-tech space planes. WSJ’s Shelby Holliday looks at what the U.S.’s Boeing-made X-37B spacecraft is capable of doing, and ...