| http://www.w3.org/ns/prov#value | - ???Saturn???s rings are unusually bright and clean, leading some to suggest that the rings are actually much younger than Saturn,??? said Jeff Cuzzi, a Cassini interdisciplinary scientist specializing in planetary rings and dust at NASA???s Ames Research Center in Moffett Field, California. ???To assess this dramatic claim, we must know more about the rate at which outside material is bombarding t
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