After passing a Dark Sky ordinance to curb light pollution and save energy, Pittsburgh is installing adjustable streetlights.

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

If you find the limestone in Minneapolis or St. Paul, you'll know the building or wall you’re looking at likely dates back ...

29."Senior from 1994 here. Someone born after 2005 would never understand why, in the '90s, if you were in a hurry or had a ...

Residents in the area of the 1100 block of N. Illinois Street and E. Leafland Avenue called 911 after hearing a burst of ...

Self-illuminating roads are becoming a reality as night falls. The Victoria Department of Transport in Australia has recently ...

I know it's last minute, but make sure to tell your friends, especially if they haven't seen the Northern Lights before. They ...