SpaceX Sends Sentinel-6B to Orbit for Precision Sea-Level Tracking
SpaceX successfully launched the Sentinel-6B ocean-monitoring satellite on November 17, 2025, marking its 500th orbital mission using a reused Falcon 9 booster. Sentinel-6B will extend more than 40 years of continuous sea-level measurement, delivering high-precision global ocean data as part of Europe’s Copernicus climate program. Equipped with advanced radar and microwave instruments, the satellite can detect sea-level changes within roughly one inch. Its mission will help track rising oceans, refine climate models, and strengthen long-term environmental monitoring.
