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Meteors, Asteroids and Comets
This is an image of the lunar highlands from the Consolidated Lunar Atlas, which was produced during the Apollo Era by the UA Lunar and Planetary Laboratory. The new study by Strom, Malhotra, Kring and their Japanese colleagues indicates this terrain was bombarded mostly by asteroids - not comets - that were flung into the inner solar system when the asteroid belt was destabilized by migrating giant planets. The Earth was similarly bombarded but geological activity has erased most evidence of that bombardment. This historical image of the heavily cratered lunar terrain was taken on 1 April 1966. (Photo courtesy of LPL Space Imagery Center)
01/14/09

 



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