Nine Planets, or Eight? | Science News

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Nine Planets, or Eight?

Probing Pluto's place in the solar system

By
10:58am, June 5, 2001

Any fourth grader knows the names of the solar system's planets. There's Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Oh yeah, and Pluto, right?

Maybe not anymore.

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