A new study published in the journal Nature Geoscience found evidence of oxygen production near polymetallic nodules located deep in the ocean. Called dark oxygen, this oxygen is being produced ...

Image: Even low concentrations of oxygen can have profound effects on ocean chemistry Photo of Australia’s red-weathered hills. Credit: Ariel Anbar, ASU Scientists widely accept that around 2.4 ...

You are taught early in science that oxygen on Earth comes from sunlight. Plants, algae, and cyanobacteria use light to split water and release oxygen, shaping the atmosphere and making complex life ...

For decades, scientists have taught that most oxygen in Earth’s oceans is produced through photosynthesis, a process in which plants and microscopic algae use sunlight to split water molecules and ...

Potato-shaped metallic nodules deep under the Pacific Ocean produce oxygen in complete darkness, challenging previous assumptions about oxygen production. The discovery of "dark oxygen" raises ...

Oxygen-producing rocks have been found on the deep seafloor, challenging what we know about oxygen production. I don’t know about you, but when I learned about oxygen production, it involved plants, ...

A 2024 study that claimed to have discovered an entirely new source of oxygen in the deep sea — dubbed "dark oxygen" — was flawed, inconsistent with previous research, and "fundamentally at odds with ...