Ceres Facts
Ceres is the only dwarf planet in the inner solar system.
Ceres was the first member of the asteroid belt to be discovered when Giuseppe Piazzi spotted it in 1801. Called an asteroid for many years, Ceres is so much bigger and so different from its rocky neighbors that scientists classified it as a dwarf planet in 2006. When NASA's Dawn arrived in 2015, Ceres became the first dwarf planet to receive a visit from a spacecraft.

Exploring Ceres
Ceres was the first dwarf planet to be orbited by a spacecraft.
NASA's Dawn mission went into orbit around Ceres on March 6, 2015, about four months before New Horizons flew past Pluto on July 14, 2015.

Pluto and Dwarf Planet Resources
A curated collection of resources about dwarf planets, including activities that can be done at home, as well as videos and animations, images, printable graphics, and 3D models.
















