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 ...

SEATTLE — Even a clear sky contains layers of wet and dry air, that is, layers with different humidities. You can’t see these layers unless the humidity is high enough for the moisture in the layer to ...

They may be an astronomer's worst enemy but clouds play a crucial role in making Earth habitable. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Have you ever looked up at the clouds in the sky and wondered how they form? Understanding cloud formation is really important for studying weather patterns and making accurate forecasts. Those clouds ...

Is your weather app predicting clouds? No need to pull out that umbrella just yet. Not all cloudy days are the same, or, not all clouds are the same to be exact. There are a number of distinguishing ...

Ever looked up at the clouds and wondered where they came from? That's exactly what atmospheric researcher Lubna Dada studies at the Paul Scherrer Institute. She is part of an international project ...

A photogenic lenticular cloud was spotted hovering over the Presidential Range of the White Mountains early Tuesday morning.

A conflict-driven reroute of international ships exposed how dramatically cleaner fuel reduces cloud formation.