Astronomers Encourage Cities to Shield Outdoor Lighting | Inside Science
Night Sky Solutions - DARK SKY DEFENDERS
Dark Skies Resources | McDonald Observatory
Dark Sky Friendly Lighting Lets You See The Stars
IDA Dark-Sky on Twitter: "Artificial light is a pollutant that has serious and harmful consequences. Effective outdoor lighting reduces light pollution, leading to a better quality of life for all. https://t.co/h6tdCaJC4D" /
Home Lighting – DarkSky International
Apply for Community-Friendly Sports Lighting Design Certification – DarkSky International