April 10, 2015 - SpaceX Falcon 9, CRS 6. The SpaceX Falcon 9 rocket will launch the eighth Dragon spacecraft. The purpose of the mission is to take the sixth resupply cargo load to the International Space Station. Launch is from launch pad SLC–40 with a launch window of 5:42 pm. SpaceX will attempt to land the first stage rocket back on a barge moored off the Florida coastline. Delayed from December 5, 2014, February 5 and April 8, 2015.