Clouds need two essential ingredients to form, and both must be present simultaneously for the process to begin. There are two ingredients needed for clouds to form: water and nuclei. The first ...

At any given time, about two-thirds of Earth's surface is covered by clouds. Overall, they make the planet much cooler than it would be without them. Subscribe to our newsletter for the latest ...

"Clouds on Mars are just as diverse and fascinating as those we see in our skies on Earth." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

GREENSBORO, N.C. — Have you ever looked up at the sky and noticed how different the clouds can be from one day to the next? Clouds are actually powerful indicators of what’s happening in our ...

Weather forecasting can often seem as arcane as gazing into a crystal ball, but the skill lies in analyzing current conditions, identifying weather patterns and applying climatology to produce a ...