IS LIFE bubbling onto the Martian surface in muddy squirts? The discovery of what could be mud volcanoes on the planet suggest it is possible, .......

This would be difficult to confirm as drilling that deep for samples on another planet is beyond current technology. Now it seems that nature may have done the hard work for us, bringing mud from deep within the planet to the surface via mud volcanoes…

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Source: www.newscientist.com