U.S. Science Officer Jeffrey Williams works in the Destiny module of the International Space Station (ISS) in this view from NASA TV while preparing for a spacewalk from aboard the orbiting laboratory June 1, 2006. Williams and Commander Pavel Vinogradov of Russia, wearing Russian Orlon spacesuits, will repair a vent on the station's oxygen-producing Elektron unit, retrieve experiment results and replace a camera on the station's rail car system during their scheduled 5-hour 41-minute spacewalk. (Xinhua/Reuters photo)