better version: Image:Earthlights dmsp.jpg

http://www.nasa.gov/centers/goddard/images/content/94112main_flat_earth_nightm.jpg

The image is actually a composite of hundreds of pictures made by U.S. Defense Meteorological Satellites Program (DMSP). It was compiled from the October 1994 - March 1995. Data was collected when moonlight was low.

File:Earth's City Lights by DMSP, 1994-1995 (full).jpg

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