It will also deliver crew supplies and cargo to the International Space Station , including CATS , the Cloud-Aerosol Transport System . SpaceX 's Dragon successfully returns from fourth ISS resupply mission . Score: 6 Mission carried critical research for human space exploration . Dragon delivered 3-D printer and device to measure Earth 's ocean winds . Next mission could come before year 's end .
SpaceX 's Dragon successfully returns from fourth ISS resupply mission . Score: 6 Mission carried critical research for human space exploration . Dragon delivered 3-D printer and device to measure Earth 's ocean winds . Next mission could come before year 's end .