Images from Dawn reveal the spots , dubbed 'feature number 5 ' , at various angles as the asteroid rotates . The images are a mosaic of three separate views taken by Dawn's framing camera on March 20 and 21, 2015 -- one each for color ( Leading theory is that ice is covered by a thin layer of soil that can explode due to pressure in the asteroid .
Images from Dawn reveal the spots , dubbed 'feature number 5 ' , at various angles as the asteroid rotates . Spots are visible when they are near edge of Ceres , suggesting that they must be high above the surface . Leading theory is that ice is covered by a thin layer of soil that can explode due to pressure in the asteroid .