![Dark enough skies? County concerned with street light impacts on Naval Observatory | Williams-Grand Canyon News | Williams-Grand Canyon, AZ Dark enough skies? County concerned with street light impacts on Naval Observatory | Williams-Grand Canyon News | Williams-Grand Canyon, AZ](https://westernnews.media.clients.ellingtoncms.com/img/photos/2019/02/05/IMG_6610-1_t715.jpg?529764a1de2bdd0f74a9fb4f856b01a9d617b3e9)
Dark enough skies? County concerned with street light impacts on Naval Observatory | Williams-Grand Canyon News | Williams-Grand Canyon, AZ
![A detail of three street lamp posts with the light on and cloudy and dark sky in the background Stock Photo - Alamy A detail of three street lamp posts with the light on and cloudy and dark sky in the background Stock Photo - Alamy](https://c8.alamy.com/comp/2H0KFE4/a-detail-of-three-street-lamp-posts-with-the-light-on-and-cloudy-and-dark-sky-in-the-background-2H0KFE4.jpg)
A detail of three street lamp posts with the light on and cloudy and dark sky in the background Stock Photo - Alamy
![Experiment uses smart city lighting to measure streetlight emissions - International Dark-Sky Association Experiment uses smart city lighting to measure streetlight emissions - International Dark-Sky Association](https://www.darksky.org/wp-content/uploads/2020/10/Tucson-streetlight-comparison-700px.png)