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  • Cooling pump fails on International Space Station; six-man crew OKadd to reading list  

    Posted on December 12, 2013 at 8:34 AM

    Updated Thursday, Dec 12 at 8:34 AM

    NASA scaled back operations on the International Space Station on Wednesday after discovering a problem with a cooling system, but officials aren’t sure yet what’s causing it.

    By John Zarrella and Catherine E. Shoichet, CNN