Pacex Falcon Heavy Rocket

After weeks of false starts and delays, SpaceX teams prepared again on Thursday to launch the military's secretive X-37B robot spaceplane on its seventh mission, the first atop a rocket capable of delivering it to a higher orbit than ever before.

After weeks of false starts and delays, SpaceX teams prepared again on Thursday to launch the military's secretive X-37B robot spaceplane on its seventh mission, the first atop a rocket capable of delivering it to a higher orbit than ever before.