We haven’t yet figured out what gives them their shape, determines their altitude – or makes them rain when they do. What’s ...

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

How Are Clouds’ Shapes Made? Explore the diverse world of cloud formations, from ground-level fog to high-flying cirrus ...

But few are fortunate enough to see Kelvin-Helmholtz clouds, which look like a pattern of ocean waves in the sky. Kelvin-Helmholtz ... clouds may be beautiful to view while on solid ground ...

No... these aren't storm clouds. They're tiny songbirds known as starlings. Starlings flock together in thousands. Their shifting movements are called "murmurations ...