It Didn't Take Long For Earth's Ancient Oceans To Become Oxygenated

It Didn't Take Long For Earth's Ancient Oceans To Become Oxygenated
By Evan Gough (https://ift.tt/vBkcDiC)

For roughly two billion years of Earth’s early history, the atmosphere contained no oxygen, the essential ingredient required for complex life. Oxygen began building up in the atmosphere during the period known as the Great Oxidation Event (GOE), but it had to enter the oceans first. When and how it first entered the oceans has remained uncertain.

December 16, 2025 at 01:21AM
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