Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our ...

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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 ...

Good sleep hygiene calls for, among other things, a cool, dark and relaxing environment. It turns out the dark part is key to helping prevent heart disease. People who are exposed to more artificial ...

BENGALURU: Bengaluru skywatchers hoping to witness the much-publicised six-planet alignment on February 28 were met with ...

Earth's satellite problem is only getting worse as time goes on and more satellites are sent into orbit. One of the chief issues with the number of satellites in orbit is how much they can affect our ...

Light pollution refers to the excessive or misdirected artificial light produced by human activities, especially in urban areas. This includes streetlights, neon signs, brightly lit buildings, and ...

Moths are under threat from increasing light pollution: streetlights and other artificial light sources in cities and populated areas disrupt the orientation of these nocturnal insects, which reduces ...

Shea Esterling receives funding from the Borrin Foundation. William Grant does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this ...

Every car is designed to be at its best in the daytime, but what about one that's made for the night? A new startup called DarkSky International says its new concept vehicle, called the DarkSky One, ...

A nocturnal dung beetle climbing atop its dung ball to survey the stars before starting to roll. Credit: Chris Collingridge The growth of cities with their streetlights and illuminated buildings has ...