The Globe at Night project turned 10 years old this month! Citizen scientists have contributed tens of thousands of data points over the last 10 years, which are part of

The 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. More than 100,000 measurements have been contributed from people in 115 countries during the campaigns each winter/spring over the last 9 years, making Globe at Night the most successful light pollution awareness campaign to date!

Globe at night

There were 23,040 data points submitted from 104 countries and all 50 US States.