Scientists think they’ve solved the mystery of what causes those weird bright spots on the dwarf planet Ceres — and you may have a jar of it in your bathroom at home.
Status is a funny thing. When Pluto was relisted as a dwarf planet, it was definitely a demotion. For the former asteroid Ceres, however, it was a step up. What had been an unusually large asteroid has moved into a whole new league. This was a bit unfortunate for astrologers, as they had taken the four largest asteroids, all named for Classical goddesses, as a balancing-act for the male-dominated planets.