A pair of space station astronauts ventured out on an urgent spacewalk Saturday to restore a crucial cooling system -- one of the most challenging repairs ever attempted at the orbiting lab.
editor@mercurynews.com (By MARCIA DUNN, San Jose Mercury News
Sat, 08/07/2010 - 6:44am
A pair of space station astronauts ventured out on an urgent spacewalk Saturday to restore a crucial cooling system -- one of the most challenging repairs ever attempted at the orbiting lab.