First-ever measurements of melatonin in wild sharks shows artificial light can disrupt nighttime hormone levels ...

Our night sky is rapidly disappearing. At our current rate of dumping excess light into the world, a child born today who could see 250 stars right now from their nearby night sky will only be able to ...

In some places around the globe, the lights never go off. Streetlights, roadway lighting, and illuminated signs can deter crime, make roads safer, and enhance landscaping. Undisrupted light, however, ...

Light pollution is increasing around the globe, both in its intensity and geographic extent. Researchers are documenting its impact on ecosystems, human health, and culture, while warning that the ...

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.

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, ...

States with an overexposure to artificial light pollution—particularly at night—are linked to an increased risk of Alzheimer's disease, according to a new study by scientists at Rush University ...

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 ...

SAN FRANCISCO (CBS SF) -- Excess light cast into the sky is now seen as a form of pollution with real impacts on the environment. The State of California is now considering a bill that would be a ...

People who lived in areas of China with high light pollution at night were about 28% more likely to develop diabetes than people who lived in the least polluted areas, according to the study published ...

Outdoor lighting for buildings, roads and advertising can help people see in the dark of night, but many astronomers are growing increasingly concerned that these lights could be blinding us to the ...

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 ...