Was Earth Once A Waterworld?

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Recorded28 Jan 2021

Publisherf.prxu.org ↗

Handlerec:8969206

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Many astronomers think that exoplanets circling distant stars might be waterworlds, but maybe we don't need to look that far away. In 2020 two American geologists published evidence that Earth's surface may have been entirely covered with water up until at least 3.2 billion years ago.

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