The mysteries of the Occator crater on Ceres have continued to puzzle astronomers and the public, even as we have seen increasing resolution in recent photos.  The latest photos show a resolution of 140 meters per pixel and reveal striking details, though the jury is still out on what exactly the bright material is and where it came from. It seems incredibly likely that the bright spots are ices of some sort, maybe even water ice, since Ceres is a water-rich body, and may have more water than Earth!  One hypothesis is that Ceres has a subsurface layer of water,...