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19-03-09 Astronauts go on spacewalk to install solar wings

A pair of astronauts ventured out on a spacewalk Thursday to help install the last set of solar wings at the international space station.It's the top job for the space station and shuttle Discovery crews.Spacewalkers Steven Swanson and Richard Arnold II emerged from the linked station-shuttle complex as it soared 220 miles above the Pacific near New Guinea,with the moon shining in the darkness."Give us some more power," said the space station's skipper,Mike Fincke. "Good luck."Astronauts inside moved the $300 million framework containing the folded-up wings into position, using the space station's robotic arm.Swanson and Arnold were there to help guide the massive structure and hook everything up.Discovery delivered the new wings earlier this week.It's the last set of solar wings to be installed at the 10-year-old space station and will bring it to full power.It's also the last major American-made piece of the space station.Once the 31,000-pound,45-foot long girder is anchored to the space station,the spacewalkers will release and remove the locks and cinches holding down the solar wings.That will allow the 115-foot wings to be unfurled Friday