jem
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Posts: 104
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Post by jem on Apr 24, 2013 7:14:29 GMT -5
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Post by raybar on Apr 24, 2013 11:42:34 GMT -5
There's an awful lot of guesswork in that article. And this is an article about an article. It's not the original article which would have more detail.
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jem
Member
Posts: 104
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Post by jem on Apr 24, 2013 13:17:45 GMT -5
It is some interesting guess work...don't ya think?
Had never thought in that direction...that life could have come from some place else.
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Post by raybar on Apr 24, 2013 14:00:35 GMT -5
That life may have come from space is not a new idea, but there is no real evidence to support it.
Simple organic compounds do exist in space, and it is reasonable to suppose that they were among the materials that formed the earth. But that's not life, just molecules. Once the earth was formed, naturally occurring chemical reactions between whatever molecules were here could have (and we think did) lead to the appearance of the first simple form of life, which may have just been a molecule that could somehow copy itself and thereby set evolution in motion.
I have seen articles that discuss the "toughness" of some microbes. The authors thought that it might be possible for them to survive extended exposure to space in a dormant condition. If so, they could drift for eons until they landed someplace hospitable to life. But this is speculation, without any evidence.
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Post by faskew on Apr 29, 2013 7:17:45 GMT -5
It's not impossible, but there's no reason to think that it's true. Plus, all the "soup" necessary to start life existed on earth. There was no need for outside material.
Fred Askew
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