A woman in Calgary, Alberta, Canada, saw a strange, wavy cloud in the sky on Feb. 22, 2025, and took to X, formerly known as Twitter, to crowdsource an answer. "Does anyone know what is happening here ...

A curious cloud photographed over Smith Mountain in Virginia this week looks more like something out of a fairytale or painting than it does in real life — and the science behind the formation is ...

Clouds have many names. There are the most popular cumulus, cirrus and stratus clouds. Then, there are more obscure cloud names like Kelvin-Helmholtz clouds. Kelvin-Helmholtz clouds are also rare, but ...

The sky showed off over the northern Wyoming mountains, and outdoor enthusiasts couldn’t help but post photos. Those looking west from Sheridan, Wyoming were treated to a rare spectacle on Tuesday, ...

This is a preview. Log in through your library . Abstract Originally, Kelvin–Helmholtz instability (KHI) describes the growth of perturbations at the interface separating counterpropagating streams of ...

The surf was up Tuesday afternoon along the crest of the Bighorn Mountains. Sky surf, that is. Those looking westward from Sheridan, Wyo., witnessed exceptional examples of giant cloud waves as they ...

When I saw the amazing photographs captured on December 10th, 2015 in Utah, I knew immediately what they were: Kelvin-Helmholtz Wave Clouds. They are always breathtaking, and these are probably some ...

Scientists have spotted the iconic surfer's wave rolling through the atmosphere of the sun. The waves hold clues as to how energy moves through that atmosphere, known as the corona. Since scientists ...

Reconnection, the merging of magnetic field lines of opposite polarity near the surface of the sun, Earth and some black holes, is believed to be the root cause of many spectacular astronomical events ...

The famed Galapagos Islands are known for the richness of their plant and animal life. But, last Friday, the atmosphere refused to be overshadowed by the lush and exotic biosphere, and put on a show ...