During their mission, the crewmembers worked on more than 150 microgravity experiments in human research; biology and biotechnology; physical and materials sciences; technology development; and Earth and space sciences. A quick succession of international space vehicles arrived on the station's loading docks during Expedition 26. The Japanese Kounotori2, or "white stork," H-II Transfer Vehicle 2; the Russian cargo ship Progress 41; the European Jules Verne Automated Transfer Vehicle; and space shuttle Discovery delivered more than 11 tons of supplies necessary for working and living aboard ISS. Expedition 26 ended on March 16, 2011.