Mission Specialist (MS) Scott E. Parazynski secures the Direct Current Switching Unit (DCSU) onto the U.S. Laboratory / Destiny with a Pistol Grip Tool (PGT) during the second Extravehicular Activity (EVA) of the STS-100 mission. This image was taken by fellow EVA astronaut Chris A. Hadfield of the Canadian Space Agency (CSA). The newly installed Space Station Remote Manipulator System (SSRMS) and Endeavour's, Orbiter Vehicle (OV) 105, Remote Manipulator System (RMS) are visible in the background.
