Space Probe Approaching Planet You've Probably Never Heard of

NASA's Dawn spacecraft will have plenty of mysteries to investigate when it begins orbiting the dwarf planet Ceres next month, as the probe's latest photos attest.

Dawn's most recent images of Ceres, taken Feb. 12 at a distance of 52,000 miles (83,000 kilometers) away, show an abundance of craters on the dwarf planet, as well as numerous bright spots that have scientists baffled.