Soyuz TMA-22 successfully returned Expedition 30 astronauts Dan Burbank, Anton Shkaplerov and Anatoli Ivanishin to Earth.
[1] The ISS was left under the command of astronauts Kononenko, Kuipers and Pettit, who had arrived at the station aboard Soyuz TMA-03M on 23 December 2011.
[10][11] Dragon carried around 460 kilograms (1,010 lb) of cargo to the ISS, including food, clothing, a laptop computer and 15 student experiments.
[10] After being loaded with 660 kilograms (1,460 lb) of downmass cargo, including completed experiments and redundant equipment, it undocked from the station and returned to Earth on 31 May 2012.
[12][13] Dragon landed intact in the Pacific Ocean and was successfully recovered, allowing SpaceX to begin regular cargo flights to the ISS.