Free Astronomy Magazine March-April 2023

4 MARCH-APRIL 2023 ASTRO PUBLISHING and the development of new light- ing technologies. Instead of exploit- ing the greater efficiency of the latter to save energy, the potential savings were converted into new light sources. The growing diffusion of lighting with LED technology (from “light-emitting diodes”), de- signed to replace incandescent, Stars are disappearing faster and faster by Michele Ferrara revised by Damian G. Allis NASA Solar System Ambassador S tars are disappearing faster and faster from the skies above a large part of the world’s popu- lation. The diffuse glow of the night sky, or “skyglow,” has grown expo- nentially during the twentieth cen- tury as a result of the increase in population, the expansion of settle- ments and communication routes, V iew of Hollywood and Los Ange- les from Mulholland Drive, slightly overexposed to show the or- ange haze that envelops the city at night. [Mike Knell]