Have you ever looked up at the sky and been struck speechless by a cloud so strange it seemed like a message from another ...

Polar stratospheric clouds are very rare, as they occur between 49,000 and 82,000 feet up, in the stratosphere layer of the atmosphere over the Earth's poles, where very few clouds usually form ...

Rare clouds that give off bright, multi-colored light like an aurora were recently spotted at multiple locations in the Arctic. But what causes them?

Nacreous clouds, or ice polar stratospheric clouds, are a rare type of cloud that forms in very cold conditions and at high altitudes. They are known for their iridescent colors, which are created ...

Temperatures are achingly cold in the stratosphere over the Arctic, which can only mean one thing: it's perfect conditions for psychedelic skies filled with rainbow-colored clouds. Type II polar ...

Stratospheric clouds over the Arctic may explain the differences seen between the polar warming calculated by climate models and actual recordings, find researchers from UNSW Sydney.

“This water vapor then travels upward into the stratosphere, and helps to form polar stratospheric clouds,” or PSCs for short.

Polar stratospheric clouds (PSCs) play a pivotal role in stratospheric chemistry, particularly in the processes that lead to ozone depletion. Formed under extreme cold conditions in the polar ...

Arctic observers got a rare festive treat when rainbow-colored clouds appeared in the skies. So-called polar stratospheric clouds were seen over Norway, Sweden, Finland, Alaska, and Scotland. Some ...

Nacreous clouds are a type of polar stratospheric cloud and are associated with freezing and dry weather.