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flag Europe launched its first space polarimeter, 3MI, on August 28, 2025, to improve weather, air quality, and climate monitoring.

flag Europe has launched its first operational space polarimeter, the 3MI instrument aboard the Metop-SGA1 satellite, which began capturing images on August 28, 2025. flag The sensor uses multiple viewing angles, channels, and polarization to analyze atmospheric particles, revealing fine details like wildfire smoke and rainbow-like cloud formations. flag Developed through a 15-year international effort, 3MI enhances weather forecasting, air quality monitoring, climate research, and public health protection across Europe and beyond, marking a major advancement in Earth observation.

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