Goodnight #EarthDay with Black Marble Earth. The night side of our planet twinkl…


Goodnight #EarthDay with Black Marble Earth. 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.

Thank you for sharing your #NoPlaceLikeHome photos and videos with us. We hope you enjoyed celebrating the beauty and wonder of our planet today!

Image Credit: NASA

#nasa #earthday2015 #earthrightnow #earth #science

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