Some astronauts who have spent extended periods in microgravity on the International Space Station (ISS) have developed abnormalities in their eyes and pituitary gland/brain connectors that are similar to a type of intracranial hypertension that occurs on the ground. The finding may help earthbound physicians understand what causes the potentially serious condition, but it already has NASA flight surgeons pondering how they can mitigate it when astronauts travel into deep space. A ...


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