News archive - February 2019

Monday, February 25, 2019

Researchers discover when and where oxygen began its rise

Mt. McRae Shale sedimentary rocks from Australia

Oxygen in the form of the oxygen molecule (O2), produced by plants and vital for animals, is thankfully abundant in Earth’s atmosphere and oceans. Researchers studying the history of O2 on Earth, however, know that it was relatively scarce for much of our planet’s 4.6 billion-year existence.   

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