
Meet the man who can explain the first 3 billion years of life on our planet
CNN
How Earth went from an rock covered in magma oceans by comets and meteors to a green-and-blue orb teeming with life over 3 billion years is the work of paleontologist Andrew Knoll, who will be awarded the Crafoord Prize on Monday.
That tale is Earth's history -- how the planet went from a rock covered in magma oceans buffeted by comets and meteors to a green and blue orb teeming with life. Between those inhospitable beginnings and now, continents formed and were torn apart, mountain ranges appeared and disappeared, ice caps spread and receded. These are the lost worlds that Knoll has explored and shed light on.

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