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  • NASA Plans Spacewalks to Fix ISS Cooling System

    Published on August 10, 2010

    Astronauts on the International Space Station (ISS) will conduct spacewalks this Friday to repair a pump module on its broken cooling system, NASA said Monday. Four spacemen will spend two spacewalks replacing the broken ammonia pump module on the station’s starboard truss with a new one. An underwater practice run was conducted Monday to help the ISS team identify challenges that will need to be addressed. The pump failed Saturday night after a spike in the electric current tripped a circuit breaker, cutting half of the station’s cooling system. Efforts to restart the pump were not successful. The station remains in a stable condition but many planned activities this week have been cancelled or postponed in order to prepare for the spacewalks

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