Many astronomers are growing increasingly concerned that these outdoor lighting from roads, buildings and elsewhere could ...

Outdoor lighting for buildings, roads and advertising can help people see in the dark of night, but many astronomers are ...

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

Light pollution reduction (LPR) filters work because many outdoor lighting sources do not shine evenly across the visible spectrum. Instead, they emit radiation at only a few distinct wavelengths ...

Even worse, only one of the 28 major sites examined by the scientists had light pollution below the 1% threshold at 30 degrees above the horizon. The researchers also considered a higher maximum ...

The town enacted light pollution ordinances in 1989, making it the first local government in Japan to pass such a law. Several years ago, the town and observatory, along with other partners ...

Some lawmakers say reducing light pollution protects the state's natural resources and its residents, but others say the action could pose more threats to residents than benefits.