| http://www.w3.org/ns/prov#value | - Vesta is a unique asteroid because of the wide variety of rocks and mineral types found on it, illustrated in the picture by the different colours.Vesta's iron core makes it special and more like terrestrial planets than a garden-variety asteroid, said Carol Raymond, Dawn's deputy principal investigator at NASA's Jet Propulsion Laboratory.The distinct compositional variation and layering that w
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