Cirrus clouds that forms atop a thunderstorm spread outward and can form anvil clouds. These clouds flatten on top as they reach the stratosphere, where the atmosphere begins to warm with height.

Captured on Jan. 12, when the sun was located just below the horizon, the unforgettable appearance of the mother-of-pearl clouds was displayed. A type of polar stratospheric cloud, mother-of-pearl ...

A new study published in Advances in Atmospheric Sciences sheds light on the complex relationship between methane emissions and the recovery of the stratospheric ozone layer. The research ...