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STS054-06-019 (17 Jan. 1993) --- Astronaut Susan J. Helms almost squeezes into the tight quarters of Endeavour's airlock to share space with her fellow mission specialists -- both attired in extravehicular mobility units (EMU) spacesuits. Astronauts Mario Runco Jr. (hands on outer edge of hatch) and Gregory J. Harbaugh spent four-plus hours on the extravehicular activity (EVA) on January 17, 1993. Helms trained with the pair for several months in preparation for the EVA. From the shirt-sleeved environment of Endeavour, she maintained communications with the two throughout the spacewalk. Al…
