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Published online 1 August 2005 | Nature | doi:10.1038/news050801-2
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Astronomers to decide what makes a planet
Status of newly discovered world hangs in the balance.
The discovery of a new addition to our Solar System has prompted astronomers to fast-track plans to decide what is and is not a planet. The rules, which could be formulated by the end of this week, could more than double the number of local planets - or they could demote Pluto, leaving us with only eight in our neighbourhood.
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