PLB, SSRMS, and MPLM

S131-E-007745 (7 April 2010) --- The station?s robotic Canadarm2 grapples the Leonardo Multi-purpose Logistics Module (MPLM) from the payload bay of the docked space shuttle Discovery (STS-131) for relocation to a port on the Harmony node of the International Space Station. Earth?s horizon and the blackness of space provide the backdrop for the scene. Canadian-built Dextre, also known as the Special Purpose Dextrous Manipulator (SPDM), is visible at bottom center.