Two satellites designed to enhance the monitoring of extreme weather events linked to climate change have been successfully sent into orbit by the European Space Agency (ESA). The Vega-C rocket carrying the Sentinel-3C and Flex satellites lifted off from the Kourou space center in French Guiana at 10:21 p.m. Monday (0121 GMT Tuesday), with the two spacecraft entering sun-synchronous orbit within two hours of lift-off. The Flex (Fluorescence Explorer) satellite aims to provide data on the impact of heat waves on plant matter by monitoring the very faint fluorescence emitted by plants when they carry out photosynthesis. That fluorescence gives an indication of how efficiently vegetation is converting sunlight and carbon dioxide into energy.
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