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May 11, 2011 01:47 pm PDT

NASA's Dawn spacecraft captures first photograph of giant asteroid Vesta

NASA today released the first image obtained by the Dawn spacecraft of the giant asteroid Vesta. The spacecraft should enter the protoplanet's orbit on July 16, when Vesta is about 117 million miles from Earth. The image from Dawn's framing cameras was taken on May 3 when the spacecraft began its approach and was approximately 752,000 miles (1.21 million km) from Vesta. The asteroid appears as a small, bright pearl against a background of stars. Vesta also is known as a protoplanet, because it is a large body that almost formed into a planet. "After plying the seas of space for more than a billion miles, the Dawn team finally spotted its target," said Carol Raymond, Dawn's deputy principal investigator at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif. "This first image hints of detailed portraits to come from Dawn's upcoming visit." Vesta is 330 miles (530 km) in diameter and the second most massive object in the asteroid belt. Ground- and space-based telescopes obtained images of the bright orb for about two centuries, but with little surface detail....


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