but other scientists have also encountered unexpected oxygen molecules in remote, light-deprived places. Sweetman said that dark oxygen production may be a wider phenomenon that has been overlooked.

Certain metallic rocks seem to be making oxygen in the dark, without light or sunshine, at the bottom of the ocean.

with only trace amounts of oxygen. "Those O2 molecules were exclusively produced via abiotic [non-biological] processes," writes the team of researchers led by Shan Xi Tian and and Jie Hu at the ...

Engineers from Sierra Space, a private company, have developed a machine designed to extract oxygen from lunar soil, also ...

A physicist explains how atoms arrange themselves into molecules – and how scientists are able to image these tiny bits of ...