Earth Was A ‘Waterworld’ Covered By A Global Ocean 3.2 Billion Years Ago

Earth was once a ‘waterworld’ just like the one depicted by Hollywood in the Kevin Costner blockbuster, according to new research. A global ocean covered the planet 3.2 billion years ago, when the first primitive microbes were emerging. There would have been hardly any dry land – mirroring the way it looked in Waterworld, the […]

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