NASA spotted a circle of clouds over the Pacific Ocean, and the image is still breathtaking over 10 years later.

Cloud-watchers can talk all about the interesting shapes they've noticed over the years ... which look like a pattern of ocean waves in the sky. Kelvin-Helmholtz clouds, also known as fluctus ...

A 2014 satellite image captured a rare glimpse of a massive, eerily circular ring of clouds that formed slap-bang in the ...

Narrator: From thin and wispy to big and puffy, clouds cover about ... mostly from the ocean, and that water vapor is condensed into clouds. But if clouds are cut out of the Earth's water cycle ...