This image illustrates the Bortle scale, which measures the impact of light pollution on the dark skies at a given location. It shows, from left to right, the increase in the number of stars and night-sky objects visible in excellent dark sky conditions compared with cities.  The illustration is a modification of a photo taken at ESO's Paranal Observatory in Chile, a place with excellent dark-sky conditions, perfect for astronomy. European Southern Observatory.

NCCo takes another step to curb light pollution

Ken MammarellaGovernment, Headlines

  Light pollution was on many Delawareans’ minds in mid-May as they sought dark places to observe the northern lights. And a few days later New Castle County Council unanimously approved an ordinance to reduce light pollution. “Ordinance 23-122 only affects new commercial construction projects (or significant redevelopment projects), and at its most basic simply ensures that light and energy …