Thursday, March 20, 2008

Earth, Mars, Moon Have Different Origin, Study Says

A new study is challenging the long-standing notion that the whole solar system formed from the same raw materials.

Until now most scientists had believed that the inner solar system bodies—Mercury, Venus, Earth, its moon, and Mars—had the same composition as primitive meteorites called chondrites.

But, problematically, Earth's chemistry doesn't quite match.


Read more here.

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