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Astronauts Complete Final Discovery Spacewalk

Two American astronauts have completed the last shuttle Discovery spacewalk before the craft is retired from service.

Steve Bowen and Alvin Drew spent six hours Wednesday completing chores outside the International Space Station as the 30-year U.S. shuttle program nears an end later this year.

It was the second of two spacewalks for the Discovery crew. Tuesday's spacewalk also lasted about six hours.

Discovery undocks from the space station Sunday for the two-day journey home. First launched in 1984, this is Discovery's 39th and final space mission.

Some information for this report was provided by AP, AFP and Reuters.