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Published online 27 March 2009 | Nature | doi:10.1038/news.2009.197
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Methane-producing mineral discovered on Mars
But it may not explain the presence of the gas on the Red Planet today.
Surprises keep coming from Nili Fossae, a long, deep scar in the surface of Mars. In December last year, scientists reported evidence there for carbonates — minerals that typically form in the presence of water1.
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