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flag A purple glow over Delta, B.C., caused by greenhouse LED lights, is due to agricultural lighting, not aliens.

flag A purple glow over Delta, B.C., has puzzled residents, sparking speculation about aliens or natural phenomena. flag Experts and officials confirm it stems from full-spectrum LED lights used in greenhouses to enhance crop growth, combining red, blue, and amber wavelengths. flag While some growers use light abatement screens, these are not mandatory. flag The lights, vital for local food production, are legal and have drawn limited complaints, though concerns about light pollution persist. flag Many residents now view the glow as a seasonal sign of agricultural innovation rather than a threat.

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