Temperatures in the vortex can fall to below -108 degrees Fahrenheit and ice crystals in Polar stratospheric clouds can form, which play an important part in the chemical reactions.

A crew of four private astronauts have become the first to ever fly over the Earth's poles in space, gaining a sublime view of Antarctica. ... of it is obscured by a swirling blanket of clouds.

Hole over Antarctica is smaller and started later than expected ... Temperatures in the vortex can fall to below -108 degrees Fahrenheit and ice crystals in Polar stratospheric clouds can form, ...

The disturbance in the stratospheric polar vortex over Antarctica in early August 2024. The colours show the air temperature at 10hPa, from less than -75 Celsius (black) to more than 35 degrees ...

The first ATLID observations were of polar stratospheric clouds over Antarctica, crucial contributors to the depletion of stratospheric ozone during winter and spring. These clouds serve as surfaces ...

A strong polar vortex is characterized by powerful, circular winds and extremely cold temperatures — conditions that caused a hole bigger than North America to open over Antarctica last year.

Two diagrams of air temperature over Antarctica show the polar vortex in 2023 (left) and 2024 (right). (Image credit: NASA Earth Observatory) However, instead of being strong and circular, this ...

The first images from August show the diversity of aerosols and clouds in the Earth's atmosphere: for example, a profile of Polar Stratospheric Clouds (PSC) over Antarctica, which play an ...

Extremely clean air on the ground, warm air intrusions and sulphate aerosol at high altitudes -- a research project has gained new insights into clouds in Antarctica.

Extremely clean air on the ground, warm air intrusions and sulphate aerosol at high altitudes - a Leipzig research project has gained new insights into clouds in Antarctica. From January to ...