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On this 10th Shuttle mission, the first untethered spacewalks were carried out by Bruce McCandless II and Robert L. Stewart,…
NASA's Goddard Space Flight Center is home to the nation’s largest organization of scientists, engineers and technologists who build spacecraft,…
Initiated in 1958, completed in 1963, Project Mercury was the United States' first man-in-space program. The objectives of the program,…
