Astronauts Replace Vital Space Station Cooling Pump

摘要

Two space station astronauts hit pay dirt in orbit Aug. 16 after successfully replacing a vital pump to restore their spacecraft's cooling system, which had been limping along at half-power for more than two weeks.rnAstronauts Douglas Wheelock and Tracy Caldwell Dyson wired a bulky ammonia pump the size of a kitchen oven into the right side of the space station during the hours-long spacewalk. It was the third spacewalk for the astronauts to make the tricky repair 354 kilometers above Earth.