March 2, 2011

Spacewalk 2: Astronauts to head back outside

By MARCIA DUNN , AP Aerospace Writer

In this image provided by NASA the docked space shuttle Discovery and the Canadian-built Special Purpose Dextrous Manipulator, are photographed by a crew member on the International Space Station. The blackness of space and Earth's horizon provide the backdrop for the scene. This is the last time the Shuttle Discovery will dock with the International Space Station. (AP Photo/NASA)

(AP) -- Space shuttle Discovery's astronauts have one last spacewalk to complete.

Stephen Bowen and Alvin Drew will venture back outside Wednesday morning to work on the International Space Station again.

They will vent ammonia out of the broken pump they relocated during Monday's' spacewalk. They also will install a camera, light and covers on outdoor equipment and remove some insulation.

Discovery will remain at the space station until Sunday. The shuttle astronauts are staying an extra day to help outfit the new storage room that was installed Tuesday.

This is Discovery's last trip to space. The shuttle will be retired once it returns to Earth next Tuesday and put in a museum.

Spacewalk 2: Astronauts to head back outside

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