Earth from Space
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Earth at Night
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Image Data
Earth at Night
Europe, Northern Africa, Eastern Asia, and Greenland
1994-1995
Streetlights are the source of most of the light seen in this image, but petroleum fires also contribute. A dark blue layer was added to the image to show where land masses are located. European cities are especially bright, and in Egypt, lights glitter along the Nile. Such images have been used to estimate global urban populations.
Courtesy Marc Imhoff, Craig Mayhew, Robert Simmon NASA/GSFC; Christopher Elvidge NOAA/NGDC
Satellite
Satellite Image

Learn about The Defense Meteorological Satellite Program (DMSP) »
Location
Location Map
For Teachers
Satisfies National Science Education Standards: Earth and Space Science: Earth in the solar system; Science in Personal and Social Perspectives: Populations, resources, and environments
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