10hon MSN
Earth's oxygen boom: How nickel and urea in early oceans shaped microbial life and set the stage
The appearance of oxygen in Earth's atmosphere was a turning point in the history of our planet, forever transforming the environment and setting the stage for complex life. This event, known as the ...
17hon MSN
Oxygen overshot on Earth 2.3bn years ago, and that should have killed some. They are still here
Earth witnessed the Great Oxygenation Event around 2.3 billion years ago, boosting oxygen levels that allowed new life forms to take root. Before this, oxygen levels on our planet were on a much lower ...
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