Biosensors are helping people with chronic conditions worldwide live better lives. However, their measurement accuracy has ...

How Earth's atmosphere transformed from oxygen-poor to oxygen-rich over a span of about two billion years has been revealed by an international team of researchers. Subscribe to our newsletter for the ...

Carbon dioxide (CO₂) pollution drives climate change, warming the planet and threatening human survival. Plants naturally turn CO₂ into oxygen (O₂) during photosynthesis, but their efficiency is ...

For roughly 2 billion years of Earth's early history, the atmosphere contained no oxygen, the essential ingredient required ...