NASA waits to see if space station coolant leak is fixed after spacewalk [ Sun, 12 May 2013 01:03:12 GMT ] Two spacewalking astronauts may have fixed an ammonia leak outside the International Space Station Saturday, perhaps bringing the outpost's vital cooling system back up to full strength.Clad in bulky spacesuits, NASA astronauts Chris Cassidy and Tom Marshburn replaced a pump control box thought to be responsible for the leak of ammonia, which cools down the orbiting lab's systems. It looks like th...
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