Martian update

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Science  20 Dec 1996:
Vol. 274, Issue 5295, pp. 1983
DOI: 10.1126/science.274.5295.1983b

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In an earlier article, McKay et al. suggested that the occurrence of PAHs (polyaromatic hydrocarbons) and textural and mineralogical features in the martian meteorite ALH84001 were consistent with the presence of past primitive life on mars. A series of technical comments and responses starting on p. 2118 address whether abiotic processes could have instead produced these features.

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