I heard that Planet X had been discovered past Pluto. What can you tell me about this?

Hi Kevin. There have been no new planets discovered in our
solar system past Pluto. There have been lots of planets
discovered orbiting other stars (really far past Pluto!)
For more information on these planets, a good place to
look is the Web page of one of the main discoverers of
extra-solar planet, Geoff Marcy. He also has a whole bunch
of links to news articles and other web pages. The address is

http://www.physics.sfsu.edu/~gmarcy/planetsearch/planetsearch.html

I hope this helps!
Jennifer Johnson

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