Lopez-Alegria and Williams working in the U.S. Laboratory

ISS013-E-84251 (23 Sept. 2006) --- Astronaut Michael E. Lopez-Alegria (foreground), Expedition 14 commander and NASA space station science officer, participates in a familiarization session with the Mobile Service System (MSS) and hands-on experience with the Canadarm2, or Space Station Remote Manipulator System (SSRMS) in the Destiny laboratory of the International Space Station. Astronaut Jeffrey N. Williams, Expedition 13 NASA space station science officer and flight engineer, assisted Lopez-Alegria.