SpaceXs Falcon 9 rocket and Dragon spacecraft launched from Launch Complex 40 at the Cape Canaveral Air Force Station, Florida, for their fourth official Commercial Resupply (CRS) mission to the orbiting lab on Sunday, September 21 at 1:52am EDT. Dragon returned to Earth with a parachute assisted splashdown off the coast of southern California on October 25. Dragon is the only operational spacecraft capable of returning a significant amount of supplies back to Earth, including experiments.

Media Credit: Image courtesy of SpaceX