Globe at Night: The Globe at Night program is an international citizen-science campaign to raise public awareness of the impact of light pollution by inviting citizen-scientists to measure their night sky brightness and submit their observations from a computer or smart phone. Light pollution threatens not only our "right to starlight", but can affect energy consumption, wildlife and health. Explore the last 12 years of data in the interactive data map, see how your city did with our regional map generator, and help put your city on the map with observations! Plus, with how early the sun goes down, it is the perfect time of year for students to make observations without having to stay up late. Get your classroom involved by checking out their website.