Noctilucent clouds usually form close to the poles, but in recent decades, they’re being spotted closer to the Equator ...

The fleeting glow of noctilucent clouds is once again making its appearance in Earth’s upper atmosphere, signaling the start ...

But the behavior of these lab-based cloud particles mimics the behavior of cloud particles in massive sky-sweeping clouds, only in miniature. “Of course, we don’t grow them at quite the same scale you ...

But few are fortunate enough to see Kelvin-Helmholtz clouds, which look like a pattern of ocean waves in the sky. Kelvin-Helmholtz clouds, also known as fluctus clouds, is a rare phenomenon that's ...

Weather officials say different types of clouds can tell you what kind of weather to expect. Here's a look at the different types.

"I opened the door of the room and saw this show in the sky. It looked like a painting!" Screenshots from Paviola's video of the rare rainbow clouds above Finland. Screenshots from Paviola's video ...

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 ...