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A third of the world’s population can’t see the Milky Way because of light pollution.
Peer through a "telescope” into the past, adjust the skyglow in a famous painting, and see how artificial lights affect mating fireflies.
Find dark-sky sites around the world—there may be one near you!
Listen to star stories from different cultures while experiencing a dark, starry night.
Small changes can have a big impact: use shielded fixtures and less intense bulbs, and turn off unneeded lights.