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Home NASA Glenn engineer Norman Prokop refines microscope that could study Martian soil. (NASA) NASA Glenn engineer Norman Prokop refines microscope that could study Martian soil. (NASA)

NASA Glenn engineer Norman Prokop refines microscope that could study Martian soil. (NASA)

NASA Glenn engineer Norman Prokop refines microscope that could study Martian soil. (NASA)

NASA Glenn engineer Norman Prokop refines microscope that could study Martian soil. (NASA)

Electrical engineer Larry Greer sets up a homemade wind tunnel to test a saltation probe. (NASA)
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