Ancient air caught by shooting stars

Kevin Zahnle () and Roger Buick ()
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Kevin Zahnle: NASA Ames Research Centre, Moffett Field, California 94035-1000, USA.
Roger Buick: and in the Astrobiology Program, University of Washington, Seattle, Washington 98195-1310, USA.

Nature, 2016, vol. 533, issue 7602, 184-186

Abstract: Ashes of ancient meteors recovered from a 2.7-billion-year-old lake bed imply that the upper atmosphere was rich in oxygen at a time when all other evidence implies that the atmosphere was oxygen-free. See Letter p.235

Date: 2016
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DOI: 10.1038/533184a

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