Astronauts Find New Rip in Space Station Wing

From CNN.com - Technology:

NASA scrambled Wednesday to deal with two power problems at the international space station that could delay future missions and make it even harder to finish building the orbiting outpost before the space shuttles must be retired. Both issues competed for the precious little spacewalking time that's left in Discovery's mission, which already was extended a day after the first problem cropped up last weekend. Spacewalks were scheduled for Thursday and Saturday. Astronauts Scott Parazynski and Douglas Wheelock were getting ready Wednesday to spend the mission's fourth spacewalk thoroughly inspecting a malfunctioning rotary joint that keeps the station's solar panels turned toward the sun.

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