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Hard Rock: Asteroid Lutetia May Be an Intact Leftover from Planetary Formation

A brief encounter between a European spacecraft and a large asteroid has revealed that the space rock is likely a mostly intact leftover from the planetary formation process. But the flyby raised more questions than it answered, providing tantalizing but somewhat puzzling hints about the asteroid's makeup and internal structure

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NASA Spacecraft Enters Orbit Around Asteroid Vesta–A Space First

An unmanned NASA probe made history 117 million miles from Earth on Saturday (July 16) when it arrived at the huge asteroid Vesta, making it the first spacecraft ever to orbit an object in the solar system's asteroid belt. The Dawn spacecraft entered orbit around Vesta after a four-year chase and will spend about a year studying the huge space rock before moving on to visit another asteroid called Ceres

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