
Pluto & Dwarf Planets - Science@NASA
Apr 29, 2025 · Our solar system has five dwarf planets: In order of distance from the Sun they are: Ceres, Pluto, Haumea, Makemake, and Eris.
About the Planets - Science@NASA
May 28, 2025 · Our solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are five officially recognized dwarf planets in our solar system: …
Pluto and Dwarf Planet Resources - Science@NASA
Nov 20, 2025 · The International Astronomical Union (IAU) has recognized five dwarf planets: Pluto, Ceres, Haumea, Makemake, and Eris. But there may be many more waiting to be …
Eris - Science@NASA
Apr 24, 2025 · The discovery of Eris help trigger a debate in the scientific community that led to the International Astronomical Union's decision in 2006 to clarify the definition of a planet. …
Pluto: Facts - NASA Science
Apr 22, 2025 · According to the 2006 IAU Resolution, "a dwarf planet is an object in orbit around the Sun that is large enough to pull itself into a nearly round shape but has not been able to …
Solar System Exploration - Science@NASA
Dec 4, 2025 · Our solar system includes the Sun, eight planets, five officially named dwarf planets, hundreds of moons, and thousands of asteroids and comets. Our solar system is …
Space Shorts: What is a Dwarf Planet? - Science@NASA
May 11, 2015 · There may be dozens of dwarf planets in our solar system. So far, we've classified just a handful -- most of them are very far away. Pluto is the most famous, but closer to home …
Planet Sizes and Locations in Our Solar System - Science@NASA
Apr 22, 2025 · The closest dwarf planet to the Sun, and the only dwarf planet in the inner solar system, Ceres orbits the Sun from an average distance of 257 million miles (413 million …
Ceres - Science@NASA
Apr 29, 2025 · 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 …
Pluto - Science@NASA
Apr 29, 2025 · 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 …