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SPACE CENTER, Houston (AP) - Officials have halted U.S. spacewalks until they can test the strength of handrails that line the U.S. part of the space station and are used to anchor the spacewalkers.
Space station managers said Wednesday they discovered some odd bubbling on the interior of some handrails that are still on the ground.
It isn't known whether any of the problematic handrails were installed on the station, but that's a chance officials weren't willing to take, said Kirk Shireman, deputy station program manager.
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