To everyone’s surprise, scientists found that the nodules release “dark oxygen” at 4,000 meters, where sunlight cannot reach. This discovery revolutionizes our understanding of deep-sea ...

Environmentalists said the presence of dark oxygen showed just how little is known about life at these extreme depths, and supported their case that deep-sea mining posed unacceptable ecological ...

In March 2025, researchers in China posted a preprint of a study (which has not yet been peer-reviewed) in which they report that two strains of deep-sea bacteria can reduce nitrate to ammonia, a ...

This unexpected source of “dark oxygen,” as it’s called ... But we now know that there is oxygen produced in the deep sea, where there is no light. I think we therefore need to revisit ...

In a groundbreaking discovery, scientists have identified a phenomenon they're calling "dark oxygen" — oxygen ... now have evidence that these deep-sea nodules may act like “geobatteries ...

Scientists have made an exciting discovery of “dark oxygen” 4,000 meters below the ... However, the new findings show that the deep-sea nodules may function like “geobatteries.” ...