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Discovery team to take another walk

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From Times Wire Reports

Space shuttle Discovery’s seven astronauts prepared for an unplanned fourth spacewalk today to get a stubborn, half-retracted solar array to fold up.

They prepared spacesuits, relocated the station’s robotic arm and mobile platform so they can be used in the spacewalk, and moved cargo from the station to the shuttle for the trip home.

Discovery’s return to Earth was pushed back a day to Friday because of the extra spacewalk. Because of supply limits, the astronauts need to be on the ground no later than Saturday.

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