'Organic molecules are those that contain chains and rings of carbon atoms linked together—like those used by life,' said researcher Atsuko Kobayashi.
"This Martian meteorite, ALH84001 is famous, with hundreds of papers published on it," Atsuko Kobayashi, an author of the study with the Tokyo Institute of Technology and California Institute of Technology, told."I have been working on it occasionally for about 20 years because I am an electron microscopist who studies tiny magnetic particles made by magnetotactic bacteria.
The authors detected nitrogen in these carbonate mineral compounds, which were likely formed as a result of"near-surface" salty, liquid groundwater. "Our nitrogen chemistry tells us that the atmosphere did not have much oxygen when the molecules were formed, which is new information," Kobayashi said. Previously, it was difficult to conduct such analyses of Martian meteorites due to the problem of contamination with material on Earth, making it hard to say how much of the organic compounds were truly Martian.
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