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ISS021-E-030163 (19 Nov. 2009) --- Astronaut Robert L. Satcher Jr., STS-129 mission specialist, uses a digital still camera to expose a photo of his helmet visor during the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. Also visible in the reflections in the visor are various components of the station and astronaut Mike Foreman, mission specialist. During the six-hour, 37-minute spacewalk, Satcher and Foreman installed a spare S-band antenna structural assembly to the Z1 segment of the station?s truss, or ba…