Pluto is the largest dwarf planet in the solar system.

The New Horizons spacecraft was launched in 2006, and will arrive at Pluto in 2015. It will be the first spacecraft to visit that very distant dwarf planet.

Eris is the largest known dwarf planet in our solar system. It is a little larger than Pluto.

Pluto is considered a dwarf planet.

Pluto is a dwarf planet.

The Solar System has only eight planets now as Pluto, which was the ninth, has been reclassified as a dwarf planet.

Pluto, located on the outskirts of our solar system, has a different kind of mountain range, made up of ice. The ice mountains are about 11,000 feet tall. The New Horizons spacecraft spotted them for the first time when it flew by the dwarf planet in July 2015.

Eris is the largest known dwarf planet in the solar system. Its elongated orbit takes it far outside of the main region of the Kuiper Belt.

The closest dwarf planet to Earth is Ceres.

Haumea is a dwarf planet shaped like an egg.