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Space station leak fixed

17 May 2013, 09:25

Cape Canaveral - Nasa says an impromptu spacewalk seems to have fixed a big ammonia leak at the International Space Station.

The "gusher" erupted last Thursday. Two days later, spacewalking astronauts replaced a suspect ammonia pump. Nasa is now calling the old, removed pump "Mr Leaky".

On Thursday, a Mission Control official said the spacewalking repairs definitely took care of the big leak.

Engineers don't know whether the pump replacement also took care of a smaller leak that has plagued the system for years. It will take at least a couple months of monitoring to know the full status.

Ammonia is used as a coolant in the space station's radiator system.

The leak forced one of the station's seven power channels to go offline. Nasa hopes to resume normal operations early next week.

- AP


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