Space Station Remote Manipulator System (SSRMS)

 Since the first module of the Station was launched in 1998, the Station has circled the globe 16 times per day at 28 000 km/h at an altitude of about 370 km.Canadian astronaut Chris Hadfield waves prior to the Soyuz launch at the Baikonur Cosmodrome in Kazakhstan on Wednesday. (Dmitry Lovetsky/Associated Press)