Photographs making invisible air pollution visible have sparked discussion around the impact of air pollution on communities ascross the globe. Researchers and artists have joined forces to 'paint ...

If you live in or near a crowded city and have tried to see the stars or a meteor shower in the night sky, you probably had little luck. The reason is light pollution. Light pollution is when urban ...

Light pollution is a man-made problem caused by the excessive use of artificial lights, especially at night. These lights can disrupt natural sleep cycles, waste energy, and even mislead migratory ...

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 ...

Excessive artificial light at night (ALAN) harms ecosystems and human health. LED lights, while energy-efficient, often produce excessive blue light, worsening ALAN. Properly designed outdoor lighting ...

Astronomers around the world are calling for international agreements to limit the spread of satellite constellations in space, with warnings that light pollution at night from the satellites damages ...