We asked the experts: It’s time to turn off all of those lights. Here’s why.

Communities around the world trying to manage blooms of toxic algae and cyanobacteria already know they have to control nutrient pollution. But now it seems they may have another factor to worry about ...

Light pollution is a man-made problem caused by the excessive use of artificial lights, especially at night. These lights can disrupt natural sleep cycles, waste energy, and even mislead migratory ...

A study published this week suggests that light pollution has increased significantly, but that countries with policies in ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Scientists researching the prevalence of Alzheimer’s disease ...

Most animals, including humans, carry an internal lunar clock, tuned to the 29.5-day rhythm of the Moon. It guides sleep, reproduction and migration of many species. But in the age of artificial light ...