Live Breaking News & Updates on Recritical Component

This mission is to replace one of two cooling loops that failed on the station, forcing the crew to conserve power. if they lose the second cooling loop, they would have to abandon the station. they have done this kind of work before. this would be the first spacewalk since an astronaut nearly drowned in his helmet last july. at 230 miles above the earth, recritical component on the station. there is an ammonia risk whenever replacing these cooling loops. the job, replace the bad pump with a spare. doug was the last astronaut to work on the pump in 2010. this week he recorded a video showing the space station crew how to go about the repair mission. our advice to them and the crew agreed, we re going to go slow, methodical, step by step, challenge response. with their space suits ....

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