From Aviation Week:The 13 astronauts and cosmonauts on the space shuttle Discovery and the International Space Station took some time off Friday before plunging into preparations for the third and final spacewalk of the docked portion of their mission.
Halfway through the 13-day STS-128 mission, the two crews had accomplished two of their most important tasks - delivering NASA astronaut Stott as the replacement for Tim Kopra, also of NASA, on the space station crew, and swapping out a depleted ammonia-tank with a fresh unit containing 600 pounds of fresh coolant.
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