New York, Philadelphia, Baltimore, Washington, Richmond - See more at: http://www.space.com/32364-nighttime-lights-in-a-us-megalopolis.html#sthash.PLEfHPwP.dpuf
I'm wondering if there are any extra-terrestrial life forms out there that are curious about what causes that fluorescence to occur on the dark side of our planet.
Correct! GA! Most light from earth that can be seen from space is wasted energy. Only a small fraction of that light is reflected from downward-facing lights.
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