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S69-32247 (22 April 1969) --- Astronaut Edwin E. Aldrin Jr., wearing an Extravehicular Mobility Unit (EMU), simulates deploying the Solar Wind Composition (SWC) experiment, on the surface of the moon, during a training exercise in Building 9 on April 22, 1969. The SWC is a component of the Early Apollo Scientific Experiment Package (EASEP). Aldrin is the lunar module pilot of the Apollo 11 lunar landing mission.
