How Flagstaff, Arizona, switched to LEDs without giving astronomers a headache

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Enlarge / A few several types of dark-sky-friendly LED streetlights. Scott Okay. Johnson “I really feel like we’re defending the final tree, in a means.” That’s what Flagstaff, Arizona, metropolis council member Austin Aslan mentioned at a latest assembly. The topic of that earnest assertion would possibly shock you: it was streetlights. To be extra …
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