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 ...

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 ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

Some of Drew Carhart’s earliest memories remind him of his love of nature. Not just trees, flowers or birds — but the stars, planets and galaxies visible in the night sky. Fifty years ago, Carhart ...

Las Vegas is a city that never sleeps, and neither do its glittering lights. It’s home to the brightest light beam in the world atop the Luxor, and now, the biggest and brightest sphere on the planet.