Satellite Reveals New Views of Earth at Night. Therefore Composite map of the world assembled from data acquired by the Suomi NPP satellite in April and October 2012.
This composite image, which has become a popular poster, shows a global view of Earth at night, compiled from over 400 satellite images. NASA researchers have used these images of nighttime lights to study weather around urban areas. Although the picture is taken at night you will be able to see from satellite view. Also how exactly it looks with the lights showing a global view. Spring of April.
Credit: NASA Earth Observatory/NOAA NGDC