Maplab

Mapping Where the Lights Are Brighter, And Where They're Going Dark

In four short years, urbanization, economics, and war have changed a satellite’s view of the Earth at night.
Blue represents increase in lighting between 2012 and 2016 while pink indicates a decrease.Esri

A lot can happen in four years. To get a sense of just how much, look no further than a set of maps from NASA showing the Earth’s lights at night.

Comparing two satellite images—one from 2012, the other from 2016— it’s apparent that some areas have lit up, indicating urban development and electrification. In other places, the lights have dimmed or been extinguished altogether, which could be a sign of war, economic downturn, or a concerted effort to reduce light pollution.