Push to ease light pollution in big citieshttps://wpnnradio.com/wp-content/themes/movedo/images/empty/thumbnail.jpg150150adminadminhttps://secure.gravatar.com/avatar/790df65a416873c3f0501d984b0b24a2f32bf2af0d1509085b901ade4bbb36e7?s=96&d=mm&r=g
Millions of Americans live in cities that produce light pollution, making it difficult to see stars in the night sky. Some scientists and cities are pushing to find ways to reduce the problem. Joy Benedict reports. source
