Holiday Lights So Bright You Can See ‘em from Space
Christmas lighting displays like this one near Duluth, Minn. U.S. contribute to increased brightness around cities that can be seen from outer space. Credit: Bob King
Call it holiday light creep. A NASA satellite has been tracking the spread of Christmas lighting from 512 miles up for the past three years and according to the data, nighttime lights around many major U.S. cities shine 20 to 50 percent brighter during Christmas and New Year’s when compared to light output during the rest of the year. Not surprisingly, most it comes from suburban areas.
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