The United Launch Alliance Atlas 5 rocket stands poised for flight with the Air Force’s X-37B spaceplane and a batch of CubeSats including the LightSail. The rocket was rolled to Complex 41 on Tuesday in preparation for launch on Wednesday.
The enigmatic X-37B spaceplane, launched into low-Earth orbit on an experimental military mission in 2015, continues to circle the planet despite a flurry of landing rumors.