Have you ever wondered how clouds stay in the sky? Here's your answer, and by the way, the weight of an actual cloud might ...

Clouds drifted in and out of the D.C. area before dawn Friday, offering enough open sky for photographers around the region to capture views of the total lunar eclipse. The spectacle began at 11:57 p.

NASA's Terra satellite was zipping over the Gulf of Mexico when one of its instruments snapped a photo of some odd-looking clouds. The clouds looked like someone had taken a hole punch to the sky.

Kelvin Helmholtz clouds are named after the two scientists who studied the physics behind them A rare cloud formation resembling waves in the sky has been seen across North Yorkshire. The billowy ...

TAKAHASHI, Okayama Prefecture--A university lab is providing artificial intelligence-based probabilities on whether a sea of clouds will form around the “mountain castle in the sky” here.