June 20, 2013

Early Mars Atmosphere May Have Been Oxygen-Rich

Paul Rincon, BBC News


AP Photo

Mars' atmosphere could have been rich in oxygen four billion years ago - well before Earth's air became augmented with the gas.

That is the suggestion put forward by the author of a study in Nature journal, which outlines an explanation for differences between Mars meteorites and rocks examined by a robot rover.

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TAGGED: Oxygen, Atmosphere, Mars

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