There was a picture of "Earth Lights" circulating around the web for sometime. There was also a poster for sale. The original pictures were taken by The Defense Meteorological Satellite Program (DMSP). The Nighttime Lights of the World poster depicts the lights from cities, fires, gas flares, and fishing boats, each in a separate color. Source data collected October 1994 - March 1995. I actually worked on that satellite and TIROS, or Television Infrared Observation Satellite program for many years. (TMI, sorry)
I don't really know what the picture at the top represents but it is not the DMSP data. The original DMSP data is shown below.