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How FLEX measures Earth’s secret glow from space
Nature is full of incredible light shows, like sea sparkles and fireflies, many of which we can see with the naked eye. In sunlight, however, there is a faint glow we do not see. It is emitted by plants. When plants absorb sunlight to photosynthesise, they also emit a very faint fluorescence signal. Invisible to the naked eye, this fluorescence ...
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