Two new images from NASA’s Dawn spacecraft show mysterious bright spots and craters on the surface of the dwarf planet Ceres. This image of Ceres was acquired by the Dawn space probe on February 12, 2015. Image credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA. Dawn will arrive at Ceres on 6 March 2015, marking the first time that a spacecraft has ever orbited two target bodies in the Solar System. The spacecraft previously explored the protoplanet...