Pluto’s ocean is capped and insulated by gas hydrates

@article{Kamata2019PlutosOI,
  title={Pluto’s ocean is capped and insulated by gas hydrates},
  author={Shunichi Kamata and Francis Nimmo and Yasuhito Sekine and Kiyoshi Kuramoto and Naoki Noguchi and Jun Kimura and Atsushi Tani},
  journal={Nature Geoscience},
  year={2019},
  volume={12},
  pages={407-410}
}
Many icy Solar System bodies possess subsurface oceans. On Pluto, Sputnik Planitia’s location near the equator suggests the presence of a subsurface ocean and a locally thinned ice shell. To maintain an ocean, Pluto needs to retain heat inside. On the other hand, to maintain large variations in its thickness, Pluto’s ice shell needs to be cold. Here we show, by thermal evolution and viscous relaxation calculations, that the presence of a thin layer of clathrate hydrates (gas hydrates) at the… 

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