A SpaceX Falcon 9 rocket launched one of its Cargo Dragon spacecraft to deliver thousands of pounds of science and other supplies to the International Space Station. This was SpaceX’s 31st supply run to the ISS as part of its Commercial Resupply Services-2 contract with NASA. The first stage booster performed a return to landing site (RTLS) landing at Landing Zone 1 (LZ-1) less than eight minutes after liftoff.