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, ...

Asteroid Vesta, once thought to be a protoplanet that had been left behind in its formation, is now the subject of a groundbreaking investigation of what may be a remnant of a far larger planet that ...

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 ...