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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...
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 (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.
Pluto was reclassified as a dwarf planet in 2006 after the discovery of similar worlds in the Kuiper Belt. Learn about its size, orbit, moons, surface, atmosphere, and more from NASA's official website.
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.
Dec 29, 2023 · A controversial article that argues for Pluto's planetary status, despite the IAU's reclassification as a dwarf planet in 2006. The author challenges the criteria of planetary definition and cites the history, exploration and uniqueness of Pluto.
May 6, 2024 · 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.
