Directory: Top/Science/Astronomy/Solar_System/Dwarf_Planets/Pluto_and_Charon/Planet

Top / Science / Astronomy / Solar_System / Dwarf_Planets / Pluto_and_Charon / Planet_Controversy /

When Is a Planet Not a Planet?
Articles discusses the debate whether Pluto should be included among the planets. [Atlantic Monthly]
http://www.theatlantic.com/issues/98feb/pluto.htm
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Much ado about Pluto
News release from NASA affirming Pluto's planetary status.
http://science.nasa.gov/newhome/headlines/ast17feb99_1.htm
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Is Pluto a Giant Comet?
Discusses related discoveries and excerpts.
http://cfa-www.harvard.edu/icq/ICQPluto.html
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Gravity Rules: The Nature of Planethood
Article discussing possible definitions that qualify objects, such as Pluto and Sedna in the Kuiper Belt, as being planets or not.
http://www.spacedaily.com/news/outerplanets-04b.html
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National Geographic News: Pluto: Planet or Comet?
Discusses Pluto's similarity to other Kuiper Belt objects, and introduces a 5-way classification scheme for solar system objects to break down the lumping together of dissimilar planets.
http://news.nationalgeographic.com/news/2001/02/0216_Pluto.html
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SciZone - Ontario Science Centre: Pluto: Planet or Not?
Brief nontechnical introduction to Pluto and similar objects such as Sedna and Quaoar, and a summary of the features that make Pluto different than the other planets. Includes a capsule summary of the arguments for and against calling Pluto a planet.
http://www.ontariosciencecentre.ca/scizone/brainz/hamilton/pluto_planet_or_not.asp
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New Horizons: Is Pluto a Planet?
Brief discussion of the controversy, and suggested classification of "Ice Dwarf" for Pluto, Charon, Sedna, and similar objects.
http://pluto.jhuapl.edu/science/everything_pluto/11_pluto_planet.html
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Pluto
Argues that Pluto is the most important Kuiper Belt object, not the least important planet, based on its orbit and other properties. From astronomer Dave Jewitt, who studies comets and other primitive solar system bodies.
http://www.ifa.hawaii.edu/~jewitt/kb/pluto.html
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SPACE.com: Pluto's Planet Status Could be Jeopardized by Sedna Discovery
Discusses the ongoing debate over the definition of the term "planet", and suggests that if Pluto should be considered a planet, so should Sedna and similar bodies.
http://www.space.com/scienceastronomy/sedna_pluto_040317.html
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What is a Planet
Reviews newly-discovered objects that stretch the definition of the term, including massive superjupiters, free-floating planets, and other exoplanets. Suggests a definition based on the way an object is formed. From astronomer Gibor Basri.
http://astron.berkeley.edu/~basri/defineplanet/whatsaplanet.htm
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