New research based on data from NASA’s Dawn mission suggests the dwarf planet Ceres may have once possessed a deep, ...

Data from a now defunct NASA spacecraft has revealed a massive internal reservior of organic material within the second ...

After spending a year gazing at Vesta, NASA's Dawn spacecraft was set to cruise toward the most massive space rock in the asteroid belt between Mars and Jupiter — a voyage that will take nearly three ...

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 ...