Space station astronauts are taking a spacewalk to replace a dead computer and get their orbiting home back up to full strength. The two Americans on board, Rick Mastracchio and Steven Swanson, ... more 
Space station astronauts are taking a spacewalk to replace a dead computer and get their orbiting home back up to full strength. The two Americans on board, Rick Mastracchio and Steven Swanson, stepped out Wednesday for the urgent repair job. (April 23) less 
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Wed, Apr 23, 2014 11:00 AM EDT