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Sentinel-6B's first validated altimetry data continues the longest unbroken sea level record in history. Sea level rise has nearly doubled in rate since 1993 — here's what the 33-year record now shows.
Sentinel-6B's Poseidon-4 SAR altimeter extends 30+ years of global sea level data. Here's how satellite radar altimetry actually works and why this Copernicus mission is irreplaceable for climate science.
NASA's super pressure balloon completed a full Earth circumnavigation in 16 days at 33 km altitude. Here's the engineering that keeps a football-stadium balloon aloft for months without venting gas.