Crashing comets make rings ripple

Wobbles in the rings of Saturn and Jupiter preserve a record of past impacts.

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Hedman M. M., et al. Science advance online publication doi:10.1126/science.1202238 (2011).
Showalter, M. R., Hedman, M. M. & Burns, J. A. Science advance online publication doi:10.1126/science.1202241 (2011).

Authors

Zeeya Merali
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Merali, Z. Crashing comets make rings ripple. Nature (2011). https://doi.org/10.1038/news.2011.198