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Methane Discovered On Mars Signals Either Biological Life Or Active Geology

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Methane that erupts from beneath the surface of Mars shows either that there is subterranean biological life, or that the red planet is geologically active, NASA announced. Further research will be required to find out which is true. This is the situation: Mars today is a world of cold and lonely deserts, apparently without life of any kind, at least on the surface. Worse still, it looks like Mars has been cold and dry for billions of years, with an…

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