On January 1, 1801, a Sicilian astronomer named Giuseppe Piazzi discovered the dwarf planet Ceres orbiting the sun between ...

The International Astronomical Union (IAU) currently recognizes five dwarf planets in our solar system, though there are likely many more. The most famous of the bunch is Pluto, way out beyond the ...

When NASA’s Dawn spacecraft arrived at Ceres, scientists expected to find a cold, inactive relic of the early solar system.

Ceres, the largest object in the asteroid belt between Mars and Jupiter, has long perplexed planetary scientists. Once considered a planet, then an asteroid, and now officially classified as a dwarf ...

Dwarf planet Ceres is depicted in these enhanced-color renderings, which utilize images from NASA’s Dawn mission. New thermal and chemical models that rely on the mission’s data indicate Ceres may ...

Data from NASA's Dawn mission, analyzed via thermal and chemical models, suggests Ceres possessed a long-lasting internal heat source driven by radioactive element decay. This heat source, reaching ...