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I also did not know much about the surface composition of the moon, so I looked that up too. This page says, "The Moon's surface lacks the abundant iron that permeates the Earth, thereby proving that the Moon did not come from the Earth." I think that the first half of that is true, but according to this page [http://www.permanent.com/l-apollo.htm], the Earth's surface also lacks the abundant iron that permeates the Earth. Are we not supposed to think about the difference between surfaces and permeations? [[User:PBrown|PBrown]] 13:40, 17 March 2007 (EDT)
I also did not know much about the surface composition of the moon, so I looked that up too. This page says, "The Moon's surface lacks the abundant iron that permeates the Earth, thereby proving that the Moon did not come from the Earth." I think that the first half of that is true, but according to this page [http://www.permanent.com/l-apollo.htm], the Earth's surface also lacks the abundant iron that permeates the Earth. Are we not supposed to think about the difference between surfaces and permeations? [[User:PBrown|PBrown]] 13:40, 17 March 2007 (EDT)
==Changes==
I've altered the article to more closely reflect the contents of the reference given, and to correct some errors on the Roche limit section. Might put up an article on tidal locking later if no one else gets to it. Also removed the reference to 'artistic' features, since I don't see anything particularly artistic about, say, iron deficiency. [[User:Tsumetai|Tsumetai]] 08:52, 19 March 2007 (EDT)