Natural History Wanderings

NPR reports

It has long been understood that photosynthesis creates oxygen, but researchers believe they’ve found oxygen being created in parts of the ocean with no light.

Researchers believe they have discovered “dark oxygen,” or oxygen not made through photosynthesis, being created on the Pacific Ocean floor. The discovery potentially challenges commonly held beliefs about how oxygen is produced on Earth.

Read story at  Scientists may have discovered ‘dark oxygen’ created without photosynthesis : NPR