November 23, 2009
The Associated Press. Astronaut Robert Satcher Jr. works on a oxygen tank near the International Space Station on Monday. The third and final spacewalk of space shuttle Atlantis' mission concluded Monday.
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CAPE CANAVERAL, Fla. -- A pair of astronauts stepped out on the third and final spacewalk of their shuttle mission Monday, helping to install an enormous oxygen tank at the International Space Station.