An Evolving View of Saturn’s Dynamic Rings

Details An Evolving View of Saturn’s Dynamic Rings An Evolving View of Saturn’s Dynamic Rings

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010sci...327.1470c&link_type=abstract

Science, Volume 327, Issue 5972, pp. 1470- (2010).

Computer Science

15

Scientific paper

We review our understanding of Saturn’s rings after nearly 6 years of observations by the Cassini spacecraft. Saturn’s rings are composed mostly of water ice but also contain an undetermined reddish contaminant. The rings exhibit a range of structure across many spatial scales; some of this involves the interplay of the fluid nature and the self-gravity of innumerable orbiting centimeter- to meter-sized particles, and the effects of several peripheral and embedded moonlets, but much remains unexplained. A few aspects of ring structure change on time scales as short as days. It remains unclear whether the vigorous evolutionary processes to which the rings are subject imply a much younger age than that of the solar system. Processes on view at Saturn have parallels in circumstellar disks.

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