Enceladus's measured physical libration requires a global subsurface ocean

@article{Thomas2016EnceladussMP,
  title={Enceladus's measured physical libration requires a global subsurface ocean},
  author={P. Thomas and R. Tajeddine and M. Tiscareno and J. Burns and J. Joseph and T. Loredo and P. Helfenstein and C. Porco},
  journal={Icarus},
  year={2016},
  volume={264},
  pages={37-47}
}
Abstract Several planetary satellites apparently have subsurface seas that are of great interest for, among other reasons, their possible habitability. The geologically diverse saturnian satellite Enceladus vigorously vents liquid water and vapor from fractures within a south polar depression and thus must have a liquid reservoir or active melting. However, the extent and location of any subsurface liquid region is not directly observable. We use measurements of control points across the… Expand

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