Black Marble
The night side of our planet twinkles with light, and the first thing to stand out is the cities. "Nothing tells us more about the spread of humans across the Earth than city lights," asserts Chris Elvidge, a NOAA scientist who has studied them for 20 years. This new global view of Earth's city lights is a composite assembled from data acqu
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https://www.nasa.gov/image-detail/black-marble/
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