![](https://www.nasa.gov/sites/default/files/thumbnails/image/us_lights2.jpg)
Night Skies and National Parks NASA helped to create a web-based tool that helps park managers better understand the impact of outdoor lighting and noise on animal species in national parks.
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晚安哦
晚安哦
Night Skies and National Parks NASA helped to create a web-based tool that helps park managers better understand the impact of outdoor lighting and noise on animal species in national parks.
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