New studies from Germany and Hong Kong pinpoint specific sources of light pollution keeping our cities excessively bright at ...

When millions of people turn off their lights for Earth Hour each year, something remarkable happens in the night sky above cities. New research from Hong Kong published in Scientific Reports shows ...

This week, skywatchers across the northern United States have a special treat waiting for them. The magical northern lights — ...

In 2019, Detroit Mayor Mike Duggan called Project Green Light a "centerpiece of our crime reduction strategy" and said it had reduced crime by 31% year-to-date compared to 2015.