Commander Koichi Wakata snapped this crystal-clear photograph of Abu Dhabi as seen from the International Space Station at night. So pretty!

The zoning of different colours of lights reminds me a bit of the photograph of lightning storms over Saudi Arabia. Amber-yellow of low-pressure sodium vapour lights trace the veins of streets running throughout the city, while the sharp white of domestic lighting infills neighbourhoods. This is the flip side of light pollution: although we might not have dark skies, at least astronauts have a great view of home.

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