Tags: space plane

The latest secretive mission of the United States Air Force’s X-37B space plane has cruised beyond 500 days in Earth orbit since its launch last year. The U.S. military launched...

The U.S. Air Force’s X-37B space plane has winged past 200 days in orbit on its latest clandestine mission. That mission, known as Orbital Test Vehicle-5 (OTV-5), began Sept. 7,...

An Air Force X-37B robotic space plane is shown after it landed at Vandenberg Air Force Base in California. The fourth mission of the program is now underway and just...

The X-37B, the U.S. Air Force’s secret robotic space plane, has now been in orbit for almost 500 days, a record-breaking time period for space endurance. The latest version of...