China is using the world’s most powerful geostationary weather satellite to track severe thunderstorms over Nepal and deliver real-time intelligence as the two countries continue search and rescue operations following last month’s devastating glacier collapse. The Fengyun‑4C satellite – launched in December 2025 and now positioned 36,000km (22,000 miles) above the equator – carries a Lightning Mapping Imager (LMI) that captures 500 frames per second, sifting through 30 gigabits of data every...

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