The first Sentinel-5 instrument has left RAL Space for integration onto the MetOp-SG A satellite, where it will contribute to improved monitoring of air quality, changes in the ozone layer, and emissions from wildfires. The first Sentinel-5 instrument has left RAL Space for integration onto the MetOp-SG A satellite, where it will contribute to improved monitoring of air quality, changes in the ozone layer, and emissions from wildfires. Planetary Sciences Phys.org – latest science and technology news stories