Dwarf planet: Quick Facts

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Last updated

Nov. 3, 2026

News •

Big News: A Giant New Dwarf Planet Candidate May Be Hiding Beyond Pluto • Oct. 30, 2026, 3:00 AM ET (ScienceAlert)

Rubin Observatory Spots Possible Dwarf Planet Beyond Pluto—the Biggest in 20 Years • Oct. 28, 2026, 4:00 PM ET (Gizmodo)

Facts

Also Known As	pluton

Photos and Videos

Learn about the dwarf planets within our solar system

The Sun and planets in its orbit.

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Topics

Pluto 10 Important Dates in Pluto History Wee Worlds: Our 5 (Official) Dwarf Planets Today in History—February 18: From Kansas to the Kuiper Belt plutoid How big is Pluto?Planet Universe Star Sun Kuiper belt Comet Asteroid Meteorite Solar system Star cluster Meteor and meteoroidmeteoroid Cosmic microwave background

View of the Andromeda Galaxy (Messier 31, M31).

Astronomy and Space Quiz

Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

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Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

All About Astronomy

1 July 2002: The Solar and Heliospheric Observatory (SOHO) satellite reveals a massive solar eruption more than 30 times the Earth's diameter. The eruption formed when a loop of a magnetic field over the surface of the Sun trapped hot gas.

Brightest Star in the Solar System

The orbits of the planets and other elements of the solar system, including asteroids, Kuiper belt, Oort cloud, comet

Space Odyssey

Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

All About Astronomy