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Thomas Lee Elifritz wrote yet another troll:
But I'll feed the troll anyway..... The Mars rovers are not equipped with microscopes good enough to see microbes. Also remember that Earth did not have multicelluar life until about 600 million years ago. Which means that life on Earth was single cell for 2 billion years. Which suggests that it's hard for life to make that jump, and maybe Mars life (if there is any) never did that jump. All we can say with the rovers is that we haven't seen any spiders on Mars, or turtles, but we can't tell one way or another about microbes, alive or fossil. |
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February 13, 2005
robert casey wrote: Thomas Lee Elifritz wrote yet another troll: But I'll feed the troll anyway..... I'm not trolling, I'm absolutely serious. The Mars rovers are not equipped with microscopes good enough to see microbes. Also remember that Earth did not have multicelluar life until about 600 million years ago. Which means that life on Earth was single cell for 2 billion years. Which suggests that it's hard for life to make that jump, and maybe Mars life (if there is any) never did that jump. All we can say with the rovers is that we haven't seen any spiders on Mars, or turtles, but we can't tell one way or another about microbes, alive or fossil. Actually, that's simply not true. Cells were symbiotic long before then, organized stromatolites, sponges, invertrebrates, etc, and multicellar specialization appeared very quickly after climatic stresses were self induced on the ecosystem by iron oxidation and oxygen accumulation. Mitochondia and ribosomes even the nucleus were basically specialized cells incorporated by other cells. We are just now finding out now how the fossil record of dna decoded organic chemistry actually proceeded, and since the chemical and environmental conditions on Mars were much different than the Earth, we can expect that the decoding of geochemistry proceeded in very different directions. I believe we are seeing evidence of this, but without any spectroscopy, it's hard to tell. The climate on Earth was very stable for 2 billion years. You simply haven't done your homework, why even comment? We are very clearly seeing fossil evidence in these images. Thomas Lee Elifritz http://elifritz.members.atlantic.net |
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