Ancient Earth once buzzed with enormous dragonfly-like insects, and scientists long thought high oxygen levels made their size possible. A new study overturns that idea, revealing insect flight ...

The journey to zero emissions starts here, within the energy sources used by major nations to provide electricity. The charts above are close-to-real-time views of the power grids in four big ...

Nitrogen-doped graphene has emerged as a leading contender for the cathode catalyst in fuel cells and metal–air batteries, offering a metal-free alternative to platinum-based systems. Incorporation of ...