Photo: Michal Šafařík, Czech Radio
The Czech satellite Troll can see chlorophyll in plants, pollution in rivers and nutrients in the soil from space. Only the third of its kind anywhere in the world, the Czech-made satellite should be put into orbit this October by Elon Musk’s company SpaceX.
The main thing that makes Troll special among the roughly seven thousand or so other satellites currently orbiting the Earth is the hyperspectral camera it is equipped with, that can photograph parts of the light spectrum invisible to the human eye.
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Author: Anna Fodor