We haven’t figured out exactly what gives them their shape, determines altitude – or makes them rain when they do. But ...

the temperature becomes cold enough for ice clouds, or cirrus, to form. Clouds made up entirely of ice are usually more transparent. In some cases, you can see the Sun or Moon through them.

Curious about whether the clouds you see mean sunny skies, roaring storms or a stunning sunset? Here’s your guide to the ...

Can a Hail Mary to stave off climate change by dimming the Sun work? Scientists in the UK are poised to find out. The ...

Scattered showers may form on the high terrain of Mexico by Saturday afternoon. Waves in the upper level wind flow could help ...

Last week we went on a trip up to Illinois to see family. It was a good trip but busy. I got my Chicago hot dog and Italian ...

On a tranquil summer evening, just as the sun dips below the horizon and darkness begins to settle, an ethereal spectacle ...