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I think what the scientist need to realise is that each comet is a case all unto itself. Not every pile of rubble floating about out there is going to conform to the expected definition of what a comet is made of, how it's pieced together or even what it's history is. Tempel 1....is what it is. Until they find more comets just like it, they can only speculate as to what its origins and the derivation of its makeup are.
Last edited by renormalised; 20-01-2011 at 12:48 PM.
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