NASA's Dawn spacecraft, in orbit around the huge asteroid Vesta, has returned its first close-up images. They show the surface of Vesta in unprecedented detail, revealing a world battered by impacts, but also a world shaped by internal processes.
Dawn will begin streaming back other kinds of data this month, and the plan is for Dawn to photograph Vesta from three different orbits over the next year, giving planetary scientists different perspectives on the surface features and how they inter-relate.
Monday, August 1, 2011
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