So why do so many life-forms breathe oxygen? There are probably thousands of kinds of metabolisms, or chemical processes that ...

Two different teams of astronomers detected oxygen in the most distant known galaxy, hinting at how these galaxies formed in ...

Black holes may not be as life-destroying as we thought. A surprising study reveals that the powerful radiation from active ...

It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing photosynthesis.

Carbon dioxide (CO₂) pollution drives climate change, warming the planet and threatening human survival. Plants naturally ...

To mitigate global climate change, emissions of the primary culprit, carbon dioxide, must be drastically reduced. A newly ...

Imagine a world where the oxygen you need changes dramatically between day and night. Your world shifts from being rich in oxygen (oxic) in the day, so you have energy to hunt for food, to ...