And that's a problem. Figuring it out is one of the biggest scientific puzzles of our time and a crucial step towards controlling more powerful future models.

When wastewater surveillance turns into a hunt for a single infected individual, the ethics get tricky.

Plug-in hybrids are often sold as a transition to EVs, but new data from Europe shows we’re still underestimating the emissions they produce.

The proliferation of AI means we need a new word.