PerspectivePlanetary Science

Ringing the Changes

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Science  17 Feb 2006:
Vol. 311, Issue 5763, pp. 961-962
DOI: 10.1126/science.1123986

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Summary

The Hubble Space Telescope has revealed two new moons and two new rings orbiting Uranus. The images indicate a dynamic, evolving, and possibly unstable ring system.