Life on Mars? Australian rocks may hold clues for Nasa rover

Life on Mars? Australian rocks may hold clues for Nasa roverLife on Mars? Australian rocks may hold clues for Nasa rover External link

Rocks in the Australian Outback dating back 3.5 billion years may help scientists work out whether there has ever been life on Mars. Researchers studying the Australian rocks say only ancient microbes could have shaped them the way they are.

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