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Article URL: https://www.scientificamerican.com/article/streetlights-are-mysteriously-turning-purple-heres-why/
Comments URL: https://news.ycombinator.com/item?id=44269192
Points: 56
# Comments: 59
Comments URL: https://news.ycombinator.com/item?id=44269192
Points: 56
# Comments: 59