TopDir - top sites directory

TopDir is a human edited web directory with various categories, a collection of hand-picked web resources for visitors

TopDir offers free website promotion for webmasters and website owners. Relevant search results and many categories for adding and promoting websites. Free web promotion for websites at TopDir directory. Submit your url for review. A collection of hand-picked web resources for visitors. This page is focused on one particular aspect of Science, Astronomy, Solar System, Dwarf Planets, Pluto and Charon, Planet Controversy.

See also:

http://www.spacedaily.com/news/outerplanets-04b.html

» 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://cfa-www.harvard.edu/icq/ICQPluto.html

» Is Pluto a Giant Comet? - Discusses related discoveries and excerpts.

http://pluto.jhuapl.edu/science/everything_pluto/11_pluto_planet.html

» 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://www.ifa.hawaii.edu/~jewitt/kb/pluto.html

» 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://astron.berkeley.edu/~basri/defineplanet/whatsaplanet.htm

» 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.

» PBS NewsHour: Pluto Debate - Reports regarding the controversy over Pluto's classification, focusing on pop culture influences and newsworthiness. (January 31, 2007)

» IAU Resolutions 5&6 - The International Astronomical Union's definition of a planet in the Solar System and ruling on the classification of Pluto. [PDF] (August 24, 2006)

» Astronomer Upset at New Planet Proposal - Washington Post article describes Michael Brown's disagreement with a proposal to expand the definition of a planet to include, among others, his own discovery. (August 19, 2006)

» CBS News: Pluto: Planet Or Junk Snowball? - Outlines the history of the debate. (February 14, 2005)

» 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. (April, 2004)

» 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. (March 17, 2004)

» 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. (February 23, 2001)

» Much ado about Pluto - News release from NASA affirming Pluto's planetary status. (February 17, 1999)

» When Is a Planet Not a Planet? - Articles discusses the debate whether Pluto should be included among the planets. [Atlantic Monthly] (February 1, 1998)

TopDir is a human edited web directory with various categories. Our mission is to organize theme based websites and remove the clutter from the information. We strive to provide context based website results to our visitors. This directory is an evolving one and we regularly add new categories, if there is a necessity. Members can suggest new categories and websites for inclusion. This is one stop promotion site for webmasters and website owners. We invite you to browse the categories and suggest your website url for an editor review. This page is focused on one particular aspect of Science, Astronomy, Solar System, Dwarf Planets, Pluto and Charon, Planet Controversy.

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