Over the past decade, the Curiosity rover has repeatedly detected methane on the surface of Mars. This gas is often produced by microbes, so it could herald the presence of life on the red planet. But skeptics have postulated that the gas detected by Curiosity could have a much more pedestrian origin.
Over the past decade, the Curiosity rover has repeatedly detected methane on the surface of Mars. This gas is often produced by microbes, so it could herald the presence of life on the red planet. But skeptics have postulated that the gas detected by Curiosity could have a much more pedestrian origin.
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