NASA's ion-propelled Dawn spacecraft has begun its approach to Ceres, a Texas-sized dwarf planet never before visited by a spacecraft.
FULL STORY: http://science.nasa.gov/science-news/science-at-nasa/2014/30dec_dawn/
NASA's ion-propelled Dawn spacecraft has begun its approach to Ceres, a Texas-sized dwarf planet never before visited by a spacecraft.
FULL STORY: http://science.nasa.gov/science-news/science-at-nasa/2014/30dec_dawn/
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