Earth’s oxygen reservoir. The biological mechanism that produces oxygen-splitting water molecules during the light-dependent stage of photosynthesis.

Carbon dioxide is being converted into oxygen on Mars thanks to an invention undergoing testing that could lead to the colonization of the red planet. Day and night across the seasons, a ...

Carbon is found all around the Earth, including in our bodies. While most of the carbon can be found in the geosphere, it is ...

Earth’s oxygen-rich atmosphere, the very thing that allows complex life to exist, may not last forever. Coupled ...