Planet Controversy
Links
Gravity Rules: The Nature of Planethood
http://www.spacedaily.com/news/outerplanets-04b.html
Article discussing possible definitions that qualify objects, such as Pluto and Sedna in the Kuiper Belt, as being planets or not.
Is Pluto a Giant Comet?
http://cfa-www.harvard.edu/icq/ICQPluto.html
Discusses related discoveries and excerpts.
Much ado about Pluto
http://science.nasa.gov/newhome/headlines/ast17feb99_1.htm
News release from NASA affirming Pluto's planetary status.
The Status of Pluto
http://www.iau.org/IAU/FAQ/PlutoPR.html
Clarification from the International Astronomical Union on Pluto's planetary status.
When Is a Planet Not a Planet?
http://www.theatlantic.com/issues/98feb/pluto.htm
Articles discusses the debate whether Pluto should be included among the planets. [Atlantic Monthly]