Ceres is more than just a space rock

Outer crust of minerals, salts, ices cover dwarf planet’s solid core

Ceres

NOT SOLID AS A ROCK  Dwarf planet Ceres (seen in this image from the Dawn spacecraft) has layers that could point to how and where it formed, a new study suggests.

JPL-Caltech/NASA, UCLA, MPS, DLR, IDA

Like an interplanetary parfait, the dwarf planet Ceres appears to have layers.