Europe's deadly heat wave seen from space | Space photo of the day for June 30, 2026
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Over 1,300 deaths have been attributed to a heat wave that swept across Europe and broke temperature records earlier this month.
From its perch in sun-synchronous low Earth orbit, Europe's Sentinel-3 satellite captured data that helps visualize the heat wave and aids researchers in understanding both the causes and effects of the atmospheric phenomena that led to these soaring temperatures. In this image from the European Space Agency (ESA), land surface temperatures are depicted on a scale that depicts hotter temperatures as red and violet. On the date this image was taken, June 23, France recorded its hottest June day ever, according to ESA.
Watch full video here: The Sentinel-3 satellite detected surface temperatures as high as 131 degrees Fahrenheit (55 degrees Celsius) in parts of central Spain, western France and northern Africa, while Madrid saw 118 degrees F (48 degrees C), and surface temperatures in Rome reached 111 degrees F (44 degrees C). Temperatures this high were unprecedented across of much of Europe. Authorities with the World Health Organization (WHO) estimate that over 1,300 deaths may be linked to the heat wave.
And things may get worse for the continent. "Europe is the fastest-warming continent on Earth, heating at twice the global average," WHO chief Tedros Adhanom Ghebreyesus posted on X. By providing real-time temperature data over both water and land using its Sea and Land Surface Temperature Radiometer instrument, the Sentinel-3 satellite is providing unprecedented data about these extreme weather events and how they affect populations.
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