Figure 11. Cross-sectional diagrams of the interior structures of Vesta (A, top) and Ceres (B, bottom) showing differentiated core-mantle-crust in the former and less differentiated silicate core-icy crust in the latter.

Top image: Courtesy of Ecole Polytechnique Federale de Lausanne/Jamani Caillet, Harold Clene. Bottom image: This artist’s concept shows a diagram of how the inside of Ceres could be structured, based on data about the dwarf planet’s gravity field from NASA’s Dawn mission (Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/).