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<p>Stle astronauts began the first of five spacewalks slated for this fourth and final servicing mission on the Hubble Space Telescope at 8:52 a.m. Eastern time Thursday. They <a halled a new wide-field camera and swapped out</a>ata router that began malfunctioning in September of last year. Two astronauts are shown above approaching Hubble on <a h TV</a>>
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Bno matter what the astronauts are doing, any Shuttle crew’s extravehicular activities are awe-inspiring and mesmerizing. In this Wired Science mini-gallery, we trace the history of the spacewalk with photos from NASA.</p>
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