Fri Dec 7, 2012 12:00 AM Last update on: Fri Dec 7, 2012 12:00 AM
This satellite photo shows cities of the United States lit up at night. The image released Wednesday is courtesy of a newly-launched satellite that's equipped with a sensor to observe the planet at night. The satellite, Suomi NPP, was launched on October 28 last year. Photo: Mail online
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