Search results
Pluto was once our ninth planet, but is now a dwarf planet. Learn about its discovery, exploration, features, and more from NASA's official website.
- Pluto: Facts
Magnetosphere. Introduction. Pluto is a complex and...
- Pluto: Facts
Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume, by a small margin, but is less massive than Eris.
Jul 13, 2015 · By Paul Rincon. Science editor, BBC News website. Nasa's New Horizons mission made a close pass of Pluto this week. For more than 70 years, Pluto was one of nine planets recognised in our...
Learn how the International Astronomical Union defined the term planet in 2006 and why Pluto was demoted to a dwarf planet. Find out the scientific reasoning and the public reaction to the change in the solar system.
Oct 13, 2022 · Pluto, officially a dwarf planet, has surprising complexity on its surface. While certainly a world, not everyone agrees it is a planet.
Jan 18, 2022 · Yes. 0% No. More than 15 years after Pluto was demoted to dwarf planet, the debate, even among scientists, continues.
