This closeup shows the slight damage done by a technician's tool to the back of a solar array panel during a procedure.

This closeup shows the slight damage done by a technician's tool to the back of a solar array panel on June 11 during a procedure to prepare the Dawn spacecraft for spin-balance testing. Dawn's goal is to characterize the conditions and processes of the solar system's earliest epoch by investigating in detail the largest protoplanets that have remained intact since their formations: asteroid Vesta and the dwarf planet Ceres. They reside in the extensive zone between Mars and Jupiter together with many other smaller bodies, called the asteroid belt. Dawn is scheduled to launch July 7. Photo credit: NASA/Kim Shiflett