Cassini imaging search rules out rings around Rhea

@article{Tiscareno2010CassiniIS,
  title={Cassini imaging search rules out rings around Rhea},
  author={Matthew S. Tiscareno and Joseph A. Burns and Jeffrey N. Cuzzi and Matthew M. Hedman},
  journal={Geophysical Research Letters},
  year={2010},
  volume={37}
}
We have conducted an intensive search using the Cassini ISS narrow‐angle camera to identify any material that may orbit Rhea. Our results contradict an earlier and surprising inference that Rhea, the second‐largest moon of Saturn, possesses a system of narrow rings embedded in a broad circum‐satellite disk or cloud. 
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