America's rapid adoption of LED lighting saves money and uses less electricity. But it's also making it harder to see the stars. Light pollution comes from excessive artificial light that causes the ...

Artificial light, while beneficial to humans, has disrupted the natural day-night cycle and created light pollution, negatively affecting wildlife. Humans also suffer from light pollution, ...

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 ...

Nantucket, with its dark sky, is unique: It’s one of the few places in eastern Massachusetts where people can see the Milky Way with the naked eye. But as new lighting, especially energy saving LED ...

Light pollution reduction (LPR) filters function by selectively blocking specific wavelengths of light emitted by certain artificial sources, such as high-pressure sodium streetlights, which ...

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. The team from ...

Semiconductor lighting technology is developing rapidly. While seeking high luminous efficiency, low cost, and superior reliability, researchers are increasingly focusing on the effects of LED ...

Global light pollution has increased by at least 49% over 25 years, new research shows. This figure only includes light visible via satellites, and scientists estimate the true increase may be ...

Some of Drew Carhart’s earliest memories remind him of his love of nature. Not just trees, flowers or birds — but the stars, planets and galaxies visible in the night sky. Fifty years ago, Carhart ...

How dark is the night sky where you live? If you’re in an urban area, the answer will likely be “not dark at all”. The pervasiveness of artificial light – be it in the form of streetlamps, billboards, ...

An LED streetlight (top) and high-pressure sodium (HPS) streetlights shine on the Second Avenue Bridge by the Veterans Memorial and Alliant Energy buildings in downtown Cedar Rapids on March 14, 2016.