Global image of city lights.
Source: NASA/NOAA
Published: August 7, 2017

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.

There are so many stories to this image. It is a global image, but relates to an individual in one glance. There are stories on social, economic, population, energy, pollution, human migration, technology meets science, enable global information, etc., that we can all communicate with similar interests under one image.
- Winnie Humberson, Earth Science Outreach Manager

ENLARGE

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