Posted: Mon, Feb 5, 2007, 8:34 AM ET (1334 GMT)
Two American astronauts performed the second in a series of three spacewalks outside the International Space Station on Sunday, completing work on the station's cooling system. Mike Lopez-Alegria and Sunita Williams spent seven hours and 11 minutes outside the ISS on Sunday, completing work started on an EVA on January 31 to reroute the station's cooling system into its permanent configuration. The two also retracted and stowed a radiator panel that is no longer needed, as well as miscellaneous other tasks. During the cooling system work a small amount of ammonia coolant leaked out, but posed no hazard to the astronauts. During the EVA Williams set the record for cumulative EVA time by a woman, at 22 hours and 37 minutes, breaking the mark previously held by Kathy Thornton. Lopez-Alegria and Williams will perform the final spacewalk in this series of three closely-spaced EVAs on Thursday.
