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For roughly the past two decades, at least two-thirds of the U.S. population have not been able to see the Milky Way at all, and it will get worse before it gets better. The dawn of light-emitting diode (LED) lighting is expected to significantly lower costs and spur consumption. In addition, LED lighting produces light with a bluer cast, which is more effectively scattered by the atmosphere. “This has the potential to be the nail in the coffin for seeing stars in most communities,” Nordgren tells me.