here's a related, newer topic:
Hubble spots Uranus' moons, rings
Baltimore Sun via San Francisco Chronicle
December 23, 2005 | Frank D. Roylance
Posted on 12/24/2005 7:02:26 PM PST by neverdem
http://www.freerepublic.com/focus/news/1546744/posts
['Civ takes cover...]Rings of Uranus - Invisible and impossibleNeither the dynamical nor the optical properties of the rings of Uranus are easily understood, unless it is assumed that they are not rings in the ordinary sense but simply volatile material in the orbits of several individual small satellites. It is possible that other natural satellites may also leave such rings in their wakes.
by T. C. van Flandern
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