Early Earth Was a Molten, Asteroid-Blasted Hellscape. Scientists Now Know When That Changed

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When the first RNA-based life forms could have emerged, was so far only roughly limited. A new model of the early Earth located particularly favorable conditions about 4.33 billion years ago. At that time the extreme bombardment subsided, while near-surface hydrothermal systems could have created stable niches for sensitive biomolecules at the same time. Bayreuth (Germany). About the origin of life on the [...] The article When was the chemistry…