Some of Earth’s earliest microbes evolved the ability to use oxygen hundreds of millions of years before it accumulated in ...
The original version of this story appeared in Quanta Magazine. Scientists have come to realize that in the soil and rocks beneath our feet there lies a vast biosphere with a global volume nearly ...
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Study finds microbes used oxygen far earlier than scientists thought
Oxygen fills the air today, but for most of Earth’s early history it barely existed. Scientists say the atmosphere did not hold steady oxygen until about 2.33 billion years ago, during the Great ...
Potato-sized lumps of metal on the seafloor are generating oxygen, a new study has found. Scientists previously believed that oxygen was strictly formed as a byproduct of photosynthesizing plants.
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