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Pluto loses planet status

Tense debate ends with a definition of 'planet'.

Pluto has been kicked out of our Sun's planetary family by astronomers who voted today to define a planet by three criteria. It failed on one of them.

Read the story here.

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For a good report on angered astronomers, see the BBC story here: http://news.bbc.co.uk/1/hi/sci/tech/5283956.stm

They amusingly point out that by this definition, perhaps Earth, Mars, Jupiter and Neptune aren't planets either...

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