Comet Sampler: Fire meets ice | Science News

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Comet Sampler: Fire meets ice

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2:20pm, March 22, 2006

The first study of comet dust brought to Earth by a spacecraft has revealed several minerals that could have formed only at the fiery temperatures close to the sun or another star. The findings come as a surprise because comets, frozen relics of the early solar system, were born beyond the orbit of Neptune and spend most of their time there.

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