Special Perspectives

NASA Returns Rocks from a Comet

Science  15 Dec 2006:
Vol. 314, Issue 5806, pp. 1709-1710
DOI: 10.1126/science.1137084

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Abstract

Cometary particles returned by the Stardust Discovery Mission are primarily silicate materials of solar system origin. Some of the grains were formed at high temperatures close to the Sun, but then transported far out to the Kuiper belt region of the solar system before being incorporated in the comet.

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