SpaceX Falcon 9 rumbled into the skies over Florida’s Space Coast, lifting the Dragon spacecraft into orbit for its return to the International Space Station for its first mission after a launch failure in 2015. Falcon 9, successfully completing its primary mission of sending Dragon on its way, again attempted a landing of its first stage on the Autonomous Spaceport Drone Ship in SpaceX’s ongoing endeavors to perfect a booster recovery at sea. Returning to the Atlantic from the edge space and over five times the speed of sound, the booster came in on target and touched down on the drone ship, remaining upright to put the exclamation point on another milestone achieved by SpaceX.