This is a photo of the asteroid called Vesta. Vesta is the second most massive object in the asteroid belt between Mars and Jupiter. The dwarf planet, Ceres, in the largest. Vesta has diameter of 525 km. It was discovered in 1807 by German astronomer Heinrich Wilhelm Matthais Olbers. Vesta is from Roman mythology and is the virgin goddess of home and hearth.  NASA's Dawn Spacecraft orbited Vesta for one year beginning in July 2011. Detailed maps were created from the photographs taken by Dawn. Compositional information was also taken using a spectrometer, and gamma-ray and neutron detector (GRaND), and a framing camera.