The biggest puzzle has to be the bright spots on the top half of Ceres. What are they? Is it ice? A different surface material? Scientists aren’t sure. But, they won’t be waiting much longer to see it in a greater detail.
Dawn will enter orbit around Ceres on March 6. During its orbiting phase, Dawn will image Ceres at an altitude of 920 miles above the dwarf planet’s surface. At its closest orbit, Dawn will be just 233 miles away from Ceres. During this period, it will determine what kinds of elements are on and near the surface of Ceres.