A close-up view of a portion of the thermal protection tiles on Space Shuttle Discovery's underside is featured in this image photographed by [astronaut Stephen K. Robinson, STS-114 mission specialist], during the mission's third session of extravehicular activities (EVA) August 3, 2005. Robinson's shadow is visible on the thermal protection tiles and a portion of the Canadian-built remote manipulator system (RMS) robotic arm and the Nile River is visible at bottom.
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