The Rise of Oxygen
Essays
A brief biography of oxygen, the key to Earth's biological diversity
What did the planet look like before oxygen remade it?
As surely as Earth shaped the evolution of life, so early life shaped the evolution of the physical planet.
Earth's early atmosphere disappeared eons ago. So how does a present-day scientist go about studying it?
Oxygen gas is key to Earth's biological diversity, but it wasn't always so. Find out how scientists are studying oxygen's origins by tracing its footprints in ancient rocks.
Educator Resources for "The Rise of Oxygen"