News of the WeekPlanetary Science

Sweeping Up After the Solar System

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Science  28 Nov 2003:
Vol. 302, Issue 5650, pp. 1491
DOI: 10.1126/science.302.5650.1491

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Two solar system dynamicists, building on earlier work, suggest that nothing in the outermost solar system--not Neptune, Pluto, or any part of the Kuiper belt--formed where we see it today.