Repost from @allspaceconsidered: Did you know #asteroid #4Vesta used to be considered a dwarf #planet? 4Vesta is the second-largest asteroid in the Solar System after Ceres and is the brightest asteroid. 4Vesta was also studied in detail by #NASA’s #Dawn spacecraft. Aries I-X Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA