NASA's Curiosity rover has captured images of rainbow-colored noctilucent clouds in Mars' atmosphere. Made of dry ice, these ...

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 new study finds that the rate of ocean warming has more than quadrupled over the past 40 years—and pinpoints why.

Called Kelvin Helmholtz, they resemble rolling ocean waves and similar patterns ... air at the top of the cloud causes the cloud tops to topple over like waves in the sea. https://twitter.com ...