Search for Past Life on Mars: Possible Relic Biogenic Activity in Martian Meteorite ALH84001

S. McKay, D.; K. Gibson, E.; L. Thomas-Keprta, K.; Vali, Hojatollah; S. Romanek, Christopher; J. Clemett, S.; D. F. Chillier, Xavier; R. Maechling, Claude; N. Zare, Richard

doi:10.1126/science.273.5277.924

Public

Search for Past Life on Mars: Possible Relic Biogenic Activity in Martian Meteorite ALH84001

Published in Science • Aug 16, 1996

Authors:

D. S. McKay

E. K. Gibson

K. L. Thomas-Keprta

Abstract

Fresh fracture surfaces of the martian meteorite ALH84001 contain abundant polycyclic aromatic hydrocarbons (PAHs). These fresh fracture surfaces also display carbonate globules. Contamination studies suggest that the PAHs are indigenous to the meteorite. High-resolution scanning and transmission el...

Subject

Meteorite

Carbonate

Martian

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