Articles discusses the debate whether Pluto should be included among the planets. [Atlantic Monthly]
News release from NASA affirming Pluto's planetary status.
Clarification from the International Astronomical Union on Pluto's planetary status.
Discusses related discoveries and excerpts.
Article discussing possible definitions that qualify objects, such as Pluto and Sedna in the Kuiper Belt, as being planets or not.
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.
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.
Re-announces formation of a working group to produce a formal definition of a planet, in conjunction with the announcement of this Trans-Neptunian object larger than Pluto, which will not be named pending a formal definition.
Brief discussion of the controversy, and suggested classification of "Ice Dwarf" for Pluto, Charon, Sedna, and similar objects.
Argues that Pluto meets the simplest and most coherent definition, rebuts opposing arguments, and lists various characteristics of all 9 planets to show what a diverse group they are. From astronomer John Stansberry of the Steward Observatory in Arizona, US.
Science /
Astronomy /
Solar_System /
Kuiper_Belt
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