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Oort cloud: Quick Facts

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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.
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Key People

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Jan Oort
Dutch astronomer

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