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Opening a martian can of worms?

Mars might once have supported life. The evidence, announced at a NASA press conference last week, is not conclusive, and perhaps not even compelling. But it will probably hasten research that should settle the matter.

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Grady, M., Wright, I. & Pillinger, C. Opening a martian can of worms?. Nature 382, 575–576 (1996). https://doi.org/10.1038/382575a0

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