Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. If you're in the northern hemisphere and it's been a clear ...

Have you ever looked up at the sky and noticed how clouds often form in distinct layers, with some huddled close to the ground while others seem to float high above? The stratification of clouds in ...

"It's a beautiful cloud but not unusual," she said. "It's a nearly textbook cumulonimbus, or thunderstorm cloud." According to Gardner, "A front helped create a line of storms across the central part ...

MOLINE, Ill — Perhaps one of the strangest appearing things in the sky you'll ever witness, this unique cloud formation comes in different sizes and shapes. It is, however, usually caused by the same ...

The series “Rayando nubes” features before and after photos, demonstrating how simple cloud shapes can inspire us to see them ...

JACKSONVILLE, Fla. — Early risers across Northeast Florida were treated to an interesting sight Wednesday morning: wispy, glowing clouds in the eastern sky just before sunrise. These are known as ...

MOLINE, Ill. — Atmospheric conditions came together just right on Wednesday afternoon to produce something we don't see that often here in the Quad Cities: rainbow clouds. Many of you quickly took ...

It was not a bird, a plane, popcorn, cotton balls or giant cow udders in the skies above Bucks County on Sunday evening. So what was it? A unique weather phenomenon. Called mammatus clouds, these ...