Two spacewalkers from the visiting space shuttle Endeavour, Robert Behnken and Nicholas Patrick, helped install the final large component on the station overnight. It is a 23-foot-long cylindrical chamber called the Tranquility Node -- but of most interest to astronauts, perhaps, is that on its side will be mounted a six-foot-wide windowed dome called the Cupola.
"It looks really good, nice and smooth coming in there," Behnken said as he watched the Tranquility module, steered by the station's robot arm, move from the shuttle's cargo bay to a docking port at one end of the 300-foot-long orbiting complex.
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