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Still Waters

NASA Recreates Space Dust in the Lab

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Scientists of NASA's Ames Research Center in Moffett Field, Calif., have, for the first time, reproduced tiny particles of dust that are known to accumulate around red giant stars. Dust is usually a mild annoyance here on Earth, but stellar dust is very special stuff - it forms the building blocks for planets.

http://news.discover...#mkcpgn=rssnws1

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So.... How do they know this is the kind of dust that accumulates around a red giant? I don't think anyone has been to a red giant to see what the dust there looks like.

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