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

A colossal and unusually symmetric cloud ring was captured by NASA’s Terra satellite hovering alone in the central Pacific ...

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

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 ...