JSC2011-E-037291 (May 2011) --- Computer-generated artist?s rendering of the International Space Station as of May 30, 2011. STS-134 space shuttle Endeavour departs, leaving new hardware: the Express Logistics Carrier 3 (ELC3) and Alpha Magnetic Spectrometer (AMS); and installed the Orbiter Boom Sensor System (OBSS) on the S1 truss. This angle shows the port side of the orbiting complex. Photo credit: NASA