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JV
#1
Oct21-04, 02:34 PM
P: 23
In another thread: "When is a planet a planet?"

http://www.physicsforums.com/showthread.php?t=46968

Someone mentioned that normally the outer planets in a solar system are gas-gaints and the inner planets are big "rocks". Why is that? Why can the gas-gaints not be the inner planets?
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