Life on Mars? Scientists close to solving mystery of the red planet
by Robin McKie Science Editor from on (#3NXC5)
Mission to find source of methane detected in atmosphere may have an answer in months, researchers believe
Scientists have begun an experiment aimed at solving one of astronomy's most intriguing puzzles: the great Martian methane mystery.
In the next few months they hope to determine whether tantalising whiffs of the gas that have been detected on the red planet in recent years are geological in origin - or are produced by living organisms.
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