Since the arrival of the Dawn spacecraft in March of 2015, we have seen tremendous views of the dwarf planet Ceres.  Lying within the asteroid belt, it is revealed to be a frozen world of ice and rock, with many interesting features.  None of these features had generated more intrigue than the famous bright spot in the bottom of what is now called the Occator crater. The icy spot has had astronomers guessing for months whether it is a cryovolcano, water ice, frozen carbon dioxide, or something even more strange and rare. As the Dawn spacecraft has moved into a...