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Science & Tech
Everything.
Algae in Lake Erie, the US
Moonset
Hurricanes
This image of Hurricane Ivan was taken in 2004.
The Australian Outback
The Northern Lights
'Crop circles' in Kansas
Volcanoes
These images of the Bardarbunga and Askja volcanoes in Iceland were taken earlier in September.
Sunrise/sunset
The Tuamotu Archipelago Islands
Lightning
The planet itself
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