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Spacewalkers do repairs quicker than expected

(NBC News) Two NASA spacewalkers started fixing the International Space Station’s cooling system more quickly than expected on Saturday, with no sign of the helmet-flooding problem that led NASA to outfit astronauts with snorkels for the first time.

Astronauts Rick Mastracchio and Mike Hopkins finished the first of three planned spacewalks in five and a half hours — an hour ahead of schedule. They moved so quickly that they got extra work done, stowing away a coolant pump module with a faulty valve to make room for its replacement. And if their next spacewalk goes as smoothly on Tuesday, they could dispense with the third outing.