The matter making up the world around us has long-since been organized into three neat categories: solids, liquids and gases.

When water freezes into ice or boils into vapor, its properties change dramatically at specific temperatures. These so-called phase transitions are fundamental to understanding materials. But how do ...

What will really matter in the long run? That’s the question we tackle each year as we compile this annual list. The 2025 edition was published in January. Here’s what wasn't on it.

When Madhya Pradesh Police tried to resolve an alleged kidnapping and murder case, the locals pelted stones at them, killing one cop.