CAPE CANAVERAL, Florida (Reuters) - NASA on Thursday halted attempts to replace a power distributor on the International Space Station after spacewalking astronauts were repeatedly stymied by a jammed bolt, officials said. NASA astronaut Sunita Williams and Japan's Akihiko Hoshide, both station flight engineers, had planned to spend 6.5 hours outside the orbital outpost to work on its power ...

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Stuck bolt on space station stymies spacewalkers