STS109-E-5485 (7 March 2002) --- Two of Columbia's four spacewalkers--astronauts James H. Newman and Michael J. Massimino--participate in the first science instrument upgrade of the fourth Hubble Space Telescope (HST) servicing mission during the flight's fourth day of extravehicular activity (EVA). The two, with Newman on Columbia's remote manipulator system (RMS) robotic arm,
remove the Faint Object Camera to make room for the new Advanced Camera for Surveys (ACS). This image was recorded with a digital still camera by one of the duo's crewmates on the aft flight deck.