Saturn’s moon Dione may harbor a subsurface ocean. The new findings suggest Dione’s ocean is several tens of kilometers deep and would surround a large rocky core. This suggests the moon’s interior is very similar to its smaller but more famous neighbor Enceladus.

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Saturn’s moon Dione may harbor a subsurface ocean. The new findings suggest Dione’s ocean is several tens of kilometers deep and would surround a large rocky core. This suggests the moon’s interior is very similar to its smaller but more famous neighbor Enceladus.