The British Isles experienced severe winter weather on 9 January 2025, with temperatures plummeting to -13.3°C in some regions. The cold snap prompted widespread ice and snow warnings across the UK, adding to over 60 flood alerts issued earlier on 8 January.

An amber cold health alert was also in place for all of England, highlighting the risks of extreme temperatures until 12 January. The weather caused major travel disruptions across air, road, and rail networks and led to school closures throughout Wales, England, and Scotland.

Satellite image showing snow covering parts of the British Isles is visible.
Ireland and United Kingdom. Credit: European Union, Copernicus Sentinel-3 imagery

Captured by the Copernicus Sentinel-3 satellite on 9 January 2025, this image shows snow blanketing parts of the British Isles.

Data from Copernicus Sentinel satellites play a crucial role in tracking snowfall and other environmental conditions, providing vital information to aid authorities in protecting affected communities.

Featured image credit: European Union, Copernicus Sentinel-3 imagery

Satellite Image: Elephant Foot Glacier, Greenland
Image of the day: The striking circular lobe of Greenland’s Elephant Foot GlacierNews

Image of the day: The striking circular lobe of Greenland’s Elephant Foot Glacier

Greenland’s Elephant Foot Glacier offers one of the most visually distinctive examples of a piedmont glacier - a type of glacier that flows from a…
Muser NewsDeskMuser NewsDeskMay 11, 2025 Full article
Image: collage of photographies
How satellite images help to protect forestsNews

How satellite images help to protect forests

Earth seen from space: ETH spin-off askEarth facilitates access to satellite images for environmental and climate monitoring. It supports businesses in combatting deforestation. Making satellite…
SourceSourceJuly 19, 2024 Full article
Image: Green Leaf Tree
Urban trees continue cooling cities even during extreme heatwavesScience

Urban trees continue cooling cities even during extreme heatwaves

Plane trees in cities have an important cooling effect even in extreme heat, according to a new study conducted by the Swiss Federal Institute for…
SourceSourceJune 29, 2025 Full article