The Dawn spacecraft is in low altitude mapping orbit (LAMO) around the dwarf planet Ceres at an altitude of 240 mi (385 km), closer than the Space Station orbits Earth. Amazing detail is being imaged and analyzed. Some of those features are highlighted in this brief Jet Propulsion Lab video. Visit this link for previous posts about Dawn.
A recent enhanced image in color of Occator crater. Click to embiggen for greatest detail.