From hundreds of miles above Earth, astronauts are witnessing cities rewrite their nocturnal signatures — the warm orange glow of sodium vapor streetlights yielding, block by block, to the cooler white of LED technology. What began as a municipal budget decision has become a planetary visual event, legible from orbit and documented in photographs that serve as an unintentional chronicle of how human infrastructure quietly transforms beneath us. The shift carries consequences both practical and philosophical: greater energy efficiency, altered light pollution, changed ambiance, and a fundamenta