Dwarf planets

The famous 87-year-old telescope at Lowell Observatory that was used to discover Pluto needs to be renovated so it can seek out the dwarf planet once more.

On the surface of the dwarf planet Ceres, certain regions could be cold enough to host long-lasting deposits of water ice, a rarely- seen phenomenon on objects similar to Ceres, a new study shows.

Here are the biggest mysteries about the dwarf planet Ceres, according to the principal investigator of NASA's Dawn mission, which is studying the intriguing world up close.

Both the dwarf planet Ceres and Pluto's moon Charon may be covered with material similar to the graphite in a pencil.