City light pollution may shift when urban trees leaf out and go dormant, with blue LED wavelengths playing a key role, new ...

New York City and Washington, DC, became darker after adopting measures to reduce artificial light at night, especially blue ...

Exposure to outdoor light at night could put people at a higher risk of developing Alzheimer’s disease (AD), according to a new study published in Frontiers in Neuroscience. "We show that, in the U.S.

Light pollution is so widespread that three quarters of all observatories are affected. Discover the latest in science, tech, and space with over 100,000 subscribers who rely on Phys.org for daily ...

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 ...

Excess light at night can contribute to air pollution, according to a study by scientists at the National Oceanic and Atmospheric Administration (NOAA) and the Cooperative Institute for Research in ...

Add Yahoo as a preferred source to see more of our stories on Google. photo showing light pollution in a city versus the dark night skies visible in the countryside Astronomers are once again ringing ...

Add Yahoo as a preferred source to see more of our stories on Google. Editor's Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, ...

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 ...

High intensity, high risk The researchers studied light pollution maps of the lower 48 US states and incorporated medical data about variables known or believed to be risk factors for AD in their ...

Excessive artificial light at night (ALAN) doesn’t just pollute the sky. It may also pollute the brain. That’s according to a surprising new study focused on light pollution and Alzheimer’s disease ...

Concern over global light pollution is growing. Astronomers are noticing its growing effect on astronomical observations, just as predicted in prior decades. Our artificial light, much of which is not ...