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Hendersonville City Council discussed a number of changes to light pollution and noise regulations at its Jan. 5 regular meeting, with both discussions focused around acceptable levels and enforcement ...

Quantum noise of light is among the most fundamental challenges of quantum physics, where light is not just an ordinary wave or particle but a complex interplay of both. Due to the discrete nature of ...

For most of human history, night arrived as a planetary certainty. Darkness spread across landscapes, and the sky revealed thousands of stars. Today, that sky is disappearing. Artificial light spills ...