Comet leaves a trail in the air

Laura Garwin ()
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Laura Garwin: the North American editor of Nature

Nature, 1998, vol. 392, issue 6678, 754-755

Abstract: A cloud of dust fills the inner Solar System, produced mainly by comets and colliding asteroids. Tiny samples of this dust are collected by aircraft flying in the Earth's stratosphere, and used as a probe of extraterrestrial chemistry. What has been missing is a knowledge of the specific parent body of a given dust grain. But one sample of interplanetary dust, collected in June and July 1991, has now been traced to a particular comet, called Schwassmann-Wachmann 3. The detective-work used, if proved sound, will also allow other comets to be sampled.

Date: 1998
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DOI: 10.1038/33793

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