Light pollution is growing rapidly and in some places the number of stars visible to the naked eye in the night sky is being reduced by more than half in less than 20 years, according to a study released in the journal “Science”.
The researchers said the increase in light pollution that they found was much larger than that measured by satellite observations of Earth at night. For the study of the change in global sky brightness from artificial light, the researchers used stellar observations from 2011 to 2022 submitted by more than 51,000 “citizen scientists” around the world, mostly in the United States and Europe.
