Last chance: Astronauts venture on final spacewalk

HOUSTON (AP) - A pair of astronauts are getting ready for the fourth and final spacewalk of Endeavor's mission to the international space station.

The spacewalkers hope to finish unjamming a huge joint that keeps a power-generating solar wing on the space station's right side facing the sun.

Astronauts also plan to lubricate a similar joint on the station's left solar wing, and install a video camera, spacewalk handrail and GPS antenna to the station. They'll also take photos of equipment.

Inside the space station they still haven't been able to get a water recycling system working right. They changed the way it's mounted yesterday and got it to run longer than it had before, but for the fourth straight day it still shut down early.

(Copyright 2008 by The Associated Press. All Rights Reserved.)

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