Launch countdown is on: Sentinel-6B is a new Earth-observing satellite that will measure sea levels for nearly all of Earth’s ocean, helping improve weather forecasting and protect coastal communities. Its data will continue a record we’ve been building since 1992. The Copernicus EU Sentinel-6/Jason-CS mission is an international collaboration with our partners: National Oceanic and Atmospheric Administration (NOAA) , ESA - European Space Agency , EUMETSAT , and CNES . It is slated to launch Nov