US military X-37B spaceplane blasts off on another secretive mission
The US military's X-37B space plane has blasted off on another secretive mission that is expected to last at least a couple of years.Key points:The…
US military launches robot spaceplane on seventh mission | Space News
The delayed launch on SpaceX’s Falcon Heavy rocket came two weeks after China launched its Shenlong space plane. The US military’s secretive X-37B robotic spaceplane…