These polar stratospheric clouds were photographed by Norwegian photographer Fredrik Broms from Kvaløya. "I've been on the lookout for polar stratospheric clouds (PSCs) all winter," Broms told ...

The Arctic Circle clouds, known as polar stratospheric clouds (PSC), only form when the lower stratosphere reaches temperatures below minus 114 degrees Fahrenheit (minus 81 degrees Celsius).

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 ...

Type II polar stratospheric clouds (PSCs) are known as one of the most beautiful cloud types in Earth's repertoire, appearing above the Arctic and Antarctic as softly glowing whisps with a ...

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 ...

“This water vapor then travels upward into the stratosphere, and helps to form polar stratospheric clouds,” or PSCs for short. The Arctic is today warming up to four times faster than the rest ...

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.

The multi-colored clouds are known as polar stratospheric clouds (PSCs) and look similar to auroras blazing in the sky. However, these rainbow clouds aren’t auroras as you might think.

Nacreous clouds are a type of polar stratospheric cloud and are associated with freezing and dry weather. Depending on chemical composition, ambient temperature, and elevation, scientists classify ...

A view of rainbow-colored clouds, known as polar stratospheric clouds, spotted near Nairn Beach in Scotland. A view of rainbow-colored clouds, known as polar stratospheric clouds, spotted near ...