Ceres, with bright spots in its Occator Crater, is seen here in a "false color" image that reflects its surface composition. New analysis says the spots are caused by a type of salt. NASA/JPL-Caltech/UCLA/MPS/DLR/IDA hide caption

toggle caption NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

The Occator crater on the dwarf planet Ceres holds bright spots that are unlike any other area on the planet's surface, NASA says. This image's resolution is around 450 feet per pixel. NASA/JPL-Caltech/UCLA/MPS/DLR/IDA hide caption

toggle caption NASA/JPL-Caltech/UCLA/MPS/DLR/IDA