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Author Topic: Physics Question of the Week  (Read 10922 times)

Offline bostjan

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Re: Physics Question of the Week
« Reply #25 on: 30/08/2006 06:12:19 »
wouldn't mars have to be significantly older than earth for that to happen, though?  4.5 billion years ago, mars was still in its infancy, and would have been pretty darn soft itself.

moon rocks are not really similar in composition enough for me to believe that the moon is made from the earth, but if it is, i think the ejected ring theory is just as valid as the colling planet theory.
 

Offline bostjan

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Re: Physics Question of the Week
« Reply #26 on: 30/08/2006 06:12:19 »
wouldn't mars have to be significantly older than earth for that to happen, though?  4.5 billion years ago, mars was still in its infancy, and would have been pretty darn soft itself.

moon rocks are not really similar in composition enough for me to believe that the moon is made from the earth, but if it is, i think the ejected ring theory is just as valid as the colling planet theory.
 

The Naked Scientists Forum

Re: Physics Question of the Week
« Reply #26 on: 30/08/2006 06:12:19 »

 

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