First measurement of the age of cometary material
Thursday, February 25, 2010 - 16:42
in Astronomy & Space
(PhysOrg.com) -- Though comets are thought to be some of the oldest, most primitive bodies in the solar system, new research on comet Wild 2 indicates that inner solar system material was transported to the comet-forming region at least 1.7 million years after the formation of the oldest solar system solids.
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