Nearby Dwarf Planet Could Have a Crust That's 90% Water

<img width="600" height="243" src="https://www.sciencealert.com/images/2020-08/processed/ceres-ocean_600.jpg" alt="Mysterious bright spots on dwarf planet Ceres point to secret underground ocean"/>A giant, dirty snowball.

https://www.sciencealert.com/nearby-dwarf-planet-could-have-a-crust-thats-90-water