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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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DarkSky’s website terms of use, covering photo and logo use, etc.
Images on this website may only be used for noncommercial, educational purposes and must complement DarkSky’s mission to preserve and protect our night skies through quality outdoor lighting.
DarkSky logos and trademarks may not be used without permission. To request permission, please contact our communications team at [email protected].
Images attributed to DarkSky must be credited as such.
Images credited to others may not be used without the consent of the photographer / illustrator / creator.
If you have further questions regarding the images on this website, please review this document. If you still have questions, contact us at [email protected].