Backdropped against the aft firewall of Discovery's cargo bay and the starboard orbital maneuvering system (OMS) pod, astronaut Mark C. Lee, payload commander, watches as astronaut Steven L. Smith (out of frame but reflected in Lee's helmet visor plate) stands on the end of the remote manipulator system (RMS). The scene was recorded with an electronic still camera (ESC) during the third scheduled spacewalk of the STS-82 mission to service the Hubble Space Telescope (HST)