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 ...

Humanity’s artificial glow is swallowing the night sky. Even astronomers in this remote observatory in the South American desert cannot escape it.

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.

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 ...

It takes a moment for the eyes to adjust. A faint spark appears in the darkness; then another, brighter one. Soon, stars, planets and entire constellations emerge. Before long, a whole galaxy ...

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 ...

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 ...

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 ...

For decades, amateur astronomers have railed against light pollution — the single greatest negative impact of humans on the night sky. Initially, the argument was, “We can’t see the stars anymore!” ...

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 ...

Standing at the top of the Golden Gate Bridge overlooking San Francisco late at night, it almost feels as if there is a glow encasing your surroundings for miles. While at the top of the Lawrence Hall ...

Humans are naturally afraid of the dark. We sometimes imagine monsters under the bed and walk faster down unlit streets at night. To conquer our fears, we may leave a night light on to scare away the ...