These artificial clouds are produced by releasing chemical compounds from high-altitude probes, typically at elevations ...

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 ...

The seven other planets in our solar system will line up in the night sky on Friday evening for a rare alignment called a "planetary parade" that will not happen again until 2040. Here is what you ...

Lenticular clouds can actually form far from mountains, as wind over a mountain range creates an effect like ripples in a pond. You might have looked up at the sky and noticed one layer of clouds ...