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Kuiper belt
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Kuiper belt binary object Pluto Moons of Pluto Makemake
Learn more about the Nice model of solar system evolution and how samples brought back from the Moon fit within it
Observe the location of the orbit of “Sedna” (red) in relation to the rest of the solar system
Haumea Pluto and Charon Illustration of the solar system showing the orbits of the Sun, eight planets, Moon, asteroid belt, Kuiper belt, Oort cloud, Pluto, and a comet, with distances labeled in astronomical units for scale. Diagram showing Pluto's elongated orbit in the outer solar system, with its closest and farthest points from the Sun labeled, surrounded by the dense region of small objects known as the Kuiper belt. The circular orbits of Jupiter, Saturn, Uranus, and Neptune are shown for comparison.
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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.
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Kuiper belt: References & Edit History

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  • Sarah Berry

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Modified link of Web site: IOPscience - The Astrophysical Journal Letters - The Inner Kernel of the Classical Kuiper Belt (PDF). Oct 28, 2026
Add new Web site: ABC listen - The Science Show - Welcome to the Kuiper Belt. Nov 17, 2025
Add new Web site: Academia - Kuiper Belt evolution due to dynamical friction (PDF). Jun 14, 2025
Add new Web site: IOPscience - The Astrophysical Journal Letters - The Inner Kernel of the Classical Kuiper Belt (PDF). Feb 25, 2025
Add new Web site: PennState - College of Earth and Mineral Sciences - Pluto and the Kuiper Belt. Aug 23, 2024
Add new Web site: The University of Arizona - Lunar and Planetary Laboratory & Department of Planetary Sciences - Dynamics of the Kuiper Belt. May 03, 2024
Add new Web site: LiveScience - The Greatest Mysteries of the Kuiper Belt. Aug 23, 2023
Add new Web site: The Planets - Kuiper Belt Facts. Jul 12, 2023
Add new Web site: Physics LibreTexts - Kuiper Belt Objects. Feb 03, 2023
Add new Web site: Physics LibreTexts - Kuiper Belt Objects. Feb 03, 2023
Add new Web site: Space.com - The Kuiper Belt: Objects at the Edge of the Solar System. Sep 14, 2022
Corrected display issue. Jan 18, 2019
Add new Web site: Cosmos - Kuiper Belt. Jan 17, 2019
Media added. Apr 05, 2016
Conversions of astronomical units to kilometres and miles added. Aug 25, 2015
Discussion of Pluto as first KBO and its dwarf-planet status added. Diameter of Charon changed from "1,250 km" to "1,208 km." Jul 23, 2015
Photographs of Pluto and the Pluto-Charon system added. Jul 23, 2015
Article thoroughly revised. Oct 08, 2012
Added artist's rendering of a Kuiper Belt binary object. May 12, 2011
Article revised and updated. Sep 29, 2006
Added new Web site: The Nine Planets - Phobos. Jun 08, 2006
Added new Web site: Kuiper Belt. May 09, 2006
Article revised. Feb 16, 2006
New article added. Jun 16, 2005
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