astroengine writes "Telltale evidence of the solar system's traumatic childhood can be found in the main asteroid belt, which contains a far more integrated assortment of bodies than previously believed, a new study shows. Previous observations of the 2,000 or so biggest asteroids in the belt — those with diameters of roughly 100 kilometers (62 miles) or larger — showed a neat structure, with asteroids closer to the sun having surface temperatures warmer than those located farther away. The observations neatly matches theories about the formation of the solar system, which posits that bodies formed in warm environments would be found closer to the sun and those formed in cold environments are farther away."
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