The new study led by biogeochemist Sean Crowe has found surprising evidence that as far back as three billion year ago, there were levels of oxygen in the atmosphere too high to have been produced ...

Earth's shallow ocean contained oxygen earlier than expected, rewriting the history of the origin of life during the "Boring ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have discovered oxygen is being produced extremely deep below the ocean's surface, changing how we think about ...

An ancient ocean retained oxygen despite global warming, revealing unexpected insights into oceanic climate change.

For centuries, oxygen has been understood as a fundamental element that supports life and fuels combustion. Scientists have ...

Several key moments in Earth’s history help us humans answer the question, “How did we get here?” These moments also shed light on the question, “Where are we going”? – offering scientists deeper ...