Russian cosmonauts on Saturday began turning back on some crucial systems that had been shut down more than four days ago when a computer system on the Russian side of the international space station crashed.The first system turned on was a machine that scrubs carbon dioxide from the air inside the space station.
A day earlier, Fyodor Yurchikhin and Oleg Kotov were able to get four of six processors on two computers working again by using a cable to bypass a circuit board.
It took four days to restore the capability of the computers. (Watch how cosmonauts fixed the computers -- 1:48 )
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