Walz works with SSRMS controls in the U.S. Laboratory during Expedition Four

ISS004-E-8623 (14 March 2002) --- Astronaut Carl E. Walz, Expedition Four flight engineer, works the controls of the Canadarm2, or Space Station Remote Manipulator System (SSRMS) in the Destiny laboratory on the International Space Station (ISS). This image was taken with a digital still camera.