Third Spacewalk For Discovery Astronauts

Space shuttle Discovery's astronauts have one last mission to complete.

Two of the crew members will venture back outside Wednesday morning to work on the international space station. This will be their third spacewalk. They will install a camera, light and covers on outdoor equipment.

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.

The Shuttle is scheduled to return to Earth next Tuesday where it will be retired and put in a museum.