.@NASA_Dawn is in orbit at #Ceres—1st spacecraft arrival at a dwarf planet http://t.co/6p6tXxBZGs pic.twitter.com/hgOV9j4sVE— NASA (@NASA) March 6, 2015
.@NASA_Dawn is in orbit at #Ceres—1st spacecraft arrival at a dwarf planet http://t.co/6p6tXxBZGs pic.twitter.com/hgOV9j4sVE