A striking Copernicus Sentinel-2 image taken on 27 January 2025 captures the partially frozen Niagara Falls after an Arctic air mass swept through the region. Located on the Canada-U.S. border, the falls experienced extreme cold following the arrival of frigid air on 20 January, with temperatures plunging as low as -20°C in some areas.

Satellite image: Niagara Falls partially frozen
Canada and USA. Credit: European Union, Copernicus Sentinel-2 imagery

While the falls did not freeze entirely due to the constant rush of water, large sections of the landscape were encased in ice. Frozen mist, ice bridges, and frost-covered trees transformed the area into a dazzling winter spectacle, drawing crowds of visitors eager to witness the rare phenomenon.

Sentinel satellites provide crucial data for monitoring snow and ice cover worldwide, helping authorities and communities make informed decisions based on environmental conditions.

Featured image credit: European Union, Copernicus Sentinel-2 imagery

Satellite Image: Budapest
Image of the day: The EU Space Days live in BudapestNews

Image of the day: The EU Space Days live in Budapest

Budapest, Hungary’s capital and largest city, is situated along the banks of the Danube River, dividing the city into Buda and Pest. The western side,…
SourceSourceNovember 20, 2024 Full article
Image: AI concept design (s. ABBA, original creators)
UN Secretary-General launches AI transparency push on carbon, water and land impactsNews

UN Secretary-General launches AI transparency push on carbon, water and land impacts

The launch of the initiative comes after a UN University report highlights the AI's massive electricity demand and environmental impacts Summary: The United Nations Secretary-General…
SourceSourceJune 24, 2026 Full article
Feeling the heat (s. climate change, heatwave)
During a heatwave, temperatures not the only threat: expertNews

During a heatwave, temperatures not the only threat: expert

Madrid, Spain | AFP Spain has just emerged from a 21-day heatwave that engulfed Madrid, Barcelona and Zaragoza, posing a health threat which extends far…
SourceSourceAugust 16, 2024 Full article