Study: Martian atmosphere was oxygen-rich

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A new study shows in Britain that Mars had the oxygen-rich air cover before the planet more than a billion years.

The researcher said, "Bernard Wood," University of "Oxford" the British, the tests for meteorites on earth and stones on Mars indicate that oxygen was affecting the surface of Mars before 4 billion years, ie, at least before the combine oxygen quantities noticeable in the atmosphere of the planet b million in 1500.

He explained, "Wood" that the evidence is based on a comparison between meteorites from Mars hit the planet and of the stones examined data probe "Spirit" of the Aviation and Space Agency American "NASA" in an old part of the planet old stone contains more than 3,700 million years ago.

He said that the "Red Planet" was probably warm and wet billions of years ago, which led to becoming the atmosphere of the planet rich in oxygen.
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