Mike Brown, Astronomer Pushing a Ninth Planet, Is the Guy Who Helped Demote Pluto
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File:Kuiper Belt Object 1998 WW31.jpg - Wikimedia Commons
Eight planets
NASA New Horizons on Twitter: "Kuiper Belt Objects vary in reflectivity and colors. Pluto is very bright, with a reflectivity of 60%. #Plutoflyby http://t.co/zPdJe18nQY" / Twitter
Kuiper Belt Facts - Interesting Facts about the Kuiper Belt
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File:Kuiper belt - Oort cloud-en.svg - Wikimedia Commons
Solar System Fluff
Big mini-world on solar system's edge
Trans-Neptunian object - Wikipedia
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The Kuiper Belt and the Oort Cloud
List of trans-Neptunian objects - Wikipedia
Kuiper Belt Objects | COSMOS
