Also: Allan Hills 84001, Mars meteorite
ALH84001 is a meteorite from Mars found in Antarctica in 1984. It became famous in 1996 for a still-debated claim of possible fossil microbes.
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McKay and colleagues reported organic molecules (PAHs), carbonate globules and tiny magnetite grains in ALH84001 and proposed they could be relics of ancient biology, while noting non-biological formation was possible. The claim remains disputed.
As reported in: McKay, Gibson, Thomas-Keprta et al. (1996). Search for Past Life on Mars: Possible Relic Biogenic Activity in Martian Meteorite ALH84001. Science. doi:10.1126/science.273.5277.924