SpaceX launches its 32nd Dragon cargo mission to the ISS "Once Dragon has been retrieved by SpaceX's recovery team, the critical science aboard the spacecraft will be transported via helicopter to [NASA's Kennedy Space Center] and provided to researchers," the company added in a second Twitter post. SpaceX launched the Dragon's SpaceX-25 mission from KSC on July 14, with the spacecraft arriving at the station two days later. It delivered 5,800 pounds (2,630 kilograms) of science experiments, crew supplies and other critical cargo to the station. On Friday, the Dragon spacecraft undocked from the space station, setting up its return to Earth on Saturday with about 4,000 pounds (1,815 kg) of science gear. That cargo included the results of a myriad of experiments on the station that will be delivered to eager scientists. SpaceX's Cargo Dragon capsules are uncrewed versions of the company's Crew Dragon spacecraft and designed to ferry supplies to and from the International Space Station under a multi-billion-dollar contract with NASA. SpaceX is one of two U.S. companies currently flying resupply missions to the station (Northrop Grumman is the other with the Cygnus spacecraft) with Sierra Nevada Space Systems also tapped to provide similar services for NASA with its planned Dream Chaser space plane. Get the Space.com Newsletter