sentences:  Some models of the dwarf planet Ceres, largest object in the asteroid belt indicate the possibility of a wet interior layer.Water vapor detected to be emitted by the dwarf planet may be an indicator, through sublimation of surface ice.A global layer of liquid water thick enough to decouple the crust from the mantle is thought to be present on Titan, Europa and, with less certainty, Callisto, Ganymede and Triton.