International Dark Sky Week is hailed as a global celebration of the night and a call for less light pollution. In some cities internationally, local governments are trying to find a solution to ...
Two recent letters have advocated using red LEDs for street lighting. There are two reasons not to do this. First, sodium lights are being replaced by LEDs because LEDs can give a white light that ...
How dark is the night sky where you live? If you’re in an urban area, the answer will likely be “not dark at all”. The pervasiveness of artificial light – be it in the form of streetlamps, billboards, ...
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Denmark just switched off white streetlights and turned a road red to solve a nighttime urban crisis most cities still ignore
Drivers on Frederiksborgvej, a primary thoroughfare in the municipality of Gladsaxe just outside Copenhagen, noticed a ...
A recent study suggests that our home galaxy, the Milky Way, cannot be seen by one-third of humanity. Why? Millions of city lamps brighten our cities every night, but only part of their light is used ...
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