(photo: sxc.hu)
astronauts were forced to leave the ISS and repair the fault.
Two astronauts came into space to repair the failure of one of the systems of the station. For the exchange of the pump is, inter alia, weighing 353 kg, which is pumped to cool the ammonia. According to experts, the total rectify arising defects will need to be out 2 to 3 times the space.
Postpone repair time could cause a failure of the second cooling system, thus leading to life-threatening crew and the need to evacuate. So today at 13 our time, Rick Mastracchio and Mike Hopkins, took to the removal of failure. From inside the station, controlling the boom, helping them Koichi Wakata Japanese.
NASA, pp 
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