Washington Post | Astronauts complete rare Christmas Eve spacewalk MiamiHerald.com CAPE CANAVERAL, Fla. -- Space station astronauts repaired a crippled cooling system during a rare Christmas Eve spacewalk Tuesday, braving a "mini blizzard" of noxious ammonia as they popped in a new pump. It was the second spacewalk in four days ... Astronauts Repair Space Station on Christmas Eve Spacewalk Astronauts make rare Christmas Eve spacewalk NASA: Christmas Eve spacewalk could wrap up repair |

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