Whether Earth’s water was delivered early or late in its formation is debated. The composition of Venus’s atmosphere may indicate that late accretion, the final stage of planet formation, delivered little water to the terrestrial planets.
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Brasser, R. Clues to late accretion from Venus’s atmosphere. Nat. Geosci. 13, 258–259 (2020). https://doi.org/10.1038/s41561-020-0564-7
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DOI: https://doi.org/10.1038/s41561-020-0564-7
