Americans are losing their starry views to light pollution. But some communities are make lighting decisions to help preserve ...

The light pollution which is caused by excessive artificial lighting has been significantly affecting the astronomical ...

The rate of human-produced light is increasing in the night sky by as much as 10% per year, making it difficult for astronomers to study the night sky.

Outdoor Light at Night, Air Pollution, and Risk of Cerebrovascular Disease: A Cohort Study in China. Stroke, 2024; 55 (4): 990 DOI: 10.1161/STROKEAHA.123.044904 ...

Many astronomers are growing increasingly concerned that these outdoor lighting from roads, buildings and elsewhere could ...

Now, we’ve also added blue light-emitting devices – smartphones, television screens, tablets – which have been linked to sleep problems. But outdoor light may matter for our health, too.

How light pollution affects the body Several mechanisms could explain artificial light’s impacts on health. At night, light can trigger insomnia, which is itself a risk for many illnesses.

Hotter stars radiate more blue light, so a star (or light) of 10,000 K appears very blue. Cooler stars radiate more red, so stars and lights of 3,000 K share a soft yellow color.

Scientists have shown that light pollution -- especially light in the blue spectrum -- can alter the behavior of fish after only a few nights, and have knock-on effects for their offspring.