We have a good idea of what those bright spots on Ceres are, but the question of how they got there remains mysterious. Now, an incredibly low-altitude image of the dwarf planet reveals details about their origins.
Nasa’s Dawn spacecraft is currently in its lowest orbit over Ceres, just 240 miles above its surface, and it’s capturing the closest images we’ve seen yet of the mysterious bright spots. Now we know that the glow likely comes from salt, and researchers have shifted their attention to the craters that house them. It turns out the craters are newer than we originally thought.