Deep beneath the Earth's surface, in the pores and crevices of rock, live huge communities of microorganisms. They are invisible to the naked eye—yet they play a central role in the quality of our ...
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Bleached Martian rocks offer fresh evidence of a wetter and warmer Mars: 'But where did they come from?
"You need so much water that we think these could be evidence of an ancient warmer and wetter climate where there was rain falling for millions of years." ...
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