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by d4nt
5189 days ago
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Another way of looking at it would be that there's no way of proving that Earth was the starting point for all the life around us. So instead of looking for life that originated elsewhere we could find lots of "alien" life that looked remarkably similar to our own all over the galaxy. If that life uses DNA, centuries from now the kind of genetic analysis we use to determine where one species branched of from another could be used to find where life on one planet came from. |
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