For most of 2015, the dwarf planet has been beaming a mystery back at us. Now NASA has an educated guess that might surprise you.
The mysterious bright spots shining on dwarf planet Ceres go under closer inspection with a newly released NASA image.
A 4-mile-high mountain on dwarf planet Ceres comes into focus as the Dawn spacecraft scoots up close for its most detailed images yet.
NASA's Dawn spacecraft cozies up to the fascinating dwarf planet Ceres and sends back the best look yet at its oddball bright spots.
Ceres appears to have a pair of cosmic headlights reflecting the sun. As NASA's Dawn spacecraft approaches, they're looking smaller, but no less mysterious.
Ceres comes into sharper focus as the Dawn mission settles into an up-close study of the dwarf planet's craters and mysterious bright spots.
Dwarf planet Ceres is NASA's latest object of fascination, sporting mysterious bright spots and a surface marked with endless craters.
NASA's Dawn spacecraft finds that the largest object in the asteroid belt is also a huge mystery, as the craft takes a closer look.
The geological features on dwarf planet Ceres are now named after agricultural gods and goddesses, while we're still waiting to hear about the sci-fi names chosen for features of Pluto's moon.
Dwarf planet Ceres gets weirder as NASA's Dawn spacecraft gets closer. Check out the latest shots from the cosmic paparazzi.