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Wednesday, July 23rd, 2008 07:01 am

How do you feel about Pluto's recent demotion? Should it still be a planet?

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2006 is still "recent"?

Anyway: It most certainly should not be. Pluto is hardly unique in size, so any definition including it that is not wholly gerrymandered to avoid problems would include dozens if not thousands of other objects in mutually-intersecting orbits besides Pluto.

In fact, I could abridge my argument to one point - including dwarf planets like Pluto would mean a solar system that looks like this picture, courtesy Mike Brown, Caltech:



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