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iss051e041841 (05/12/2017) -- NASA astronaut Peggy Whitson is seen during the 200th spacewalk in support of the International Space Station. Expedition 51 Commander Peggy Whitson and Flight Engineer Jack Fischer of NASA successfully replaced a large avionics box that supplies electricity and data connections to the science experiments. The astronauts also completed additional tasks to install a connector that will route data to the Alpha Magnetic Spectrometer, repair insulation at the connecting point of the Japanese robotic arm, and install a protective shield on the Pressurized Mating Adapte…
