Under calm conditions, the air exhibits vertical motion ... So, next time you spot those wave-like clouds in the sky, you'll know they're more than just a pretty sight--they're a display of ...

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 ...

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 ...

We received a few photos of a brilliant sunrise on Friday, with vivid pink clouds filling the sky before the approaching ... the optical phenomenon appears as a vertical shaft of light, visible ...

Each scene is made more intense by lasting only moments. Smilde's creations in gallery spaces include a sky-grazing cloud at the De Groen Fine Art Collection in Arnhem, the Netherlands.

A rare cloud formation resembling waves in the sky has been seen across North Yorkshire. The billowy phenomenon was captured on camera in Cawthorn on Tuesday night by a BBC weather watcher.