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Saturn's moon Mimas may possess the youngest ocean in the Solar System at 10-15 million years old, new research finds


Research Institute - Boulder, Boulder, CO, USA (alyssa@boulder.swri.edu) - 2Planetary Science Institute, Tucson, AZ, USA - 3University of Oxford, Oxford, UK - 1Southwest Research Institute - Boulder, Boulder, CO, USA (alyssa@boulder.swri.edu) - 2Planetary Science Institute, Tucson, AZ, USA - 3University of Oxford, Oxford, UK Introduction: Mimas is a small moon of Saturn with a heavily cratered surface and high eccentricity, suggesting an inactive past. It was, thus, surprising when Cassini measurements of Mimas’ libration and tracking of its pericenter precession revealed that Mimas maintains an ocean under an ice shell 20-30 km thick [5,12].

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