[/caption]The largest asteroid in the Solar System is 4 Vesta. Ceres is much more massive, but has been promoted to dwarf planet status, leaving Vesta the largest asteroid. Ceres and Vesta will be orbited and studied by the Dawn spacecraft. Vesta was first discovered on March 29, 1807 by Heinrich Wilhelm Olbers. The asteroid measures … Continue reading "Largest Asteroid in the Solar System"