Which U.S. prone‑lightning counties face the most strikes? Learn which areas top the charts, why they’re hotbeds for ...

At any given time, about two-thirds of Earth's surface is covered by clouds. Overall, they make the planet much cooler than ...

NASA and Monash University research reveals shrinking storm cloud zones are the primary driver of Earth's recent warming.

Puffy, wispy, white and gray, we’ve seen them all this spring. Clouds come in a variety of types, and each type comes with ...

From towering thunderheads to wispy ice trails, clouds come in more forms than you might think. Here's the full lineup—and ...