Vesta (Video Credit, NASA/JPL-Caltech/UCLA/MPS/DLR/PSI ). Dawn and Hubble images of Vesta compared (Image Credit, NASA/JPL-Caltech/UCLA/MPS/DLR/PSI ). The Dawn spacecraft is closing in on the asteroid Vesta . It should reach Vesta in early-Mid July and orbit the asteroid for a year, mapping and exploring it before visiting Ceres. Still over 180,000