For centuries, it was believed that the production of oxygen relied on one component: photosynthesis (the conversion of light energy into chemical energy). Plants and algae use sunlight to convert ...

Life on Earth may have learned to breathe oxygen long before oxygen filled the skies. MIT researchers traced a key oxygen-processing enzyme back hundreds of millions of years before the Great ...

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 ...

Oxygen is everywhere on Earth today. But that hasn’t always been the case. Scientists think oxygen only became a lasting part ...

Oxygen fills the air today, but for most of Earth’s early history it barely existed. Scientists say the atmosphere did not hold steady oxygen until about 2.

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

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 ...

Oxygen has been historically linked to sunlight. But a new study has suggested that oxygen may also be produced without any sunlight at all. Scientists at the University of Southern Denmark recently ...

An international team of researchers has devised a plasma-based approach to producing oxygen on Mars to support exploration. Oxygen is vital: it breathable environments, life support, producing fuels ...