NASA astronaut Don Pettit has captured another remarkable shot, this one showing the Betsiboka River estuary in Madagascar.

With 2,600 staff representing 100 different nationalities, AFP covers the world in six languages, with a unique quality of multimedia storytelling spanning video, text, photos and graphics.

Satellite images help identify large areas of pollution caused by fires, dust or sand storms, volcanic eruptions, large industrial sources, or the transport of man-made pollution from other regions.

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