The Dawn spacecraft used ion propulsion to travel to Vesta, the second most massive object in the asteroid belt. Arriving in July 2011, its mission is to explore Vesta for a year and then travel to Ceres, the largest asteroid in the belt. Vesta's south pole is characterized by a tall mound inside a large depression.
Image Number: WEB12464-2012 Credit: NASA/JPL-Caltech/ UCLA/MPS/DLR/IDA For print or commercial use, please contact: NASA/JPL-Caltech/ UCLA/MPS/DLR/IDA
