Pluto is a dwarf planet located in a distant region of our solar system beyond Neptune known as the Kuiper Belt. Pluto was long considered our ninth planet, but the International Astronomical Union reclassified Pluto as a dwarf planet in 2006.

Pluto is a small, icy world with five moons, including the giant Charon. It was reclassified as a dwarf planet in 2006 because it does not clear its orbit of debris. Learn more about its history, structure, surface, and exploration by New Horizons.

For more than 70 years, Pluto was one of nine planets recognised in our Solar System. But in 2006, it was relegated to the status of dwarf planet by the International Astronomical Union (IAU). So...

Pluto, large, distant member of the solar system that formerly was regarded as the outermost and smallest planet. In 2006 a group of experts in the scientific community voted to give Pluto the new classification of dwarf planet.

Pluto is a small, icy world with five moons, including the giant Charon. It was reclassified as a dwarf planet in 2006 because it does not clear its orbit of debris. Learn more about Pluto's history, structure, surface, and exploration by NASA's New Horizons.

Learn about Pluto, the dwarf planet in the Kuiper Belt, and its moon Charon. Find out why Pluto is not a planet, how it orbits the Sun, and what NASA's New Horizons spacecraft discovered there.

Regardless of whether Pluto is a planet or a dwarf planet, it remains a fascinating part of the solar system, from its huge white "heart" of frozen nitrogen to the ice-spewing 'supervolcano ...

Learn about the five dwarf planets in our solar system, including Pluto, the most famous one. Find out how they are different from regular planets and what makes them special.

Pluto is the largest known dwarf planet in the solar system and used to be considered the ninth and most distant planet from the sun.