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Light pollution is the human-made alteration of outdoor light levels from those ocurring naturally. It has harmful effects on:

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By Mark Bult
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We are delighted to bring you a sneak peek of the digital version of the newly redesigned Nightscape magazine, Summer 2021 edition, #105.
Nightscape is our award-winning publication, that provides current news about the International Dark-Sky Association and night sky protection with in-depth articles on IDA programs, light pollution issues, and efforts to protect the night exclusively for our members.
This issue includes:
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You can also download the PDF of Nightscape #105 · Summer 2021 by right-clicking.
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nternational Dark Sky Week (April 13-20, 2026) is a global celebration of the night.