As cities grow, light pollution has spread across the night sky in America. Observatories find their views obstructed, and space-based options like the expensive, fragile Hubble telescope cant entirely replace ground-based counterparts. But Tyler Nordgren wants to remind people that the stars are still worth watching. In Nautilus, Todd Pitock profiles Nordgren, who has worked to bring astronomy programs to national parks, drawing attention to the constellations that light pollution erases. …
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