The dwarf planet Vesta is helping scientists better understand the earliest era in the formation of our solar system. Two recent papers involving scientists from the University of California, Davis, ...

NASA’s Dawn spacecraft is on track to become the first probe to orbit and study two distant solar system destinations, to help scientists answer questions about the formation of our solar system. The ...

An unmanned spacecraft with ties to Tucson is on track to coast around the sun this winter before sling-shotting by Mars on its way to a rendezvous with an asteroid and a dwarf planet. NASA officials ...

LOS ANGELES (AP) — Next and final stop: The biggest object in the asteroid belt. After spending a year gazing at a giant asteroid, NASA’s Dawn spacecraft on Wednesday began the cruise toward an even ...