Microbes grown on Mars’ ruddy crust hint at signs of life

Billions of years ago, Mars was home to oceans, rivers, and seas. During this ancient era of the Red Planet, atmospheric pressures and temperatures were higher than today, making Mars a far more temperate world than the one we know in our modern age. Today, we search for signs of any ancient life that may have once graced the surface of the Red Planet. The Perseverance rover set down on the surface of the Red Planet on February 18, in search of Martian water and signs of ancient life. Life utilizes the resources it has available, and such ancient life on Mars would have…

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