Night lights have a dark side

Artificial light at night not only affects our view of the night sky, but also has the ability to impair animal behaviors — and probably our health.

Lights Night Background: Over 2,052,118 Royalty-Free Licensable Stock Illustrations & Drawings

Light pollution: The dark side of keeping the lights on

The dark side of Christmas lights: A seasonal sparkle or a power drain? - Energy Sustainability Solutions

Night lights have a dark side

Lightsaber Night-Lights: The Dark (Side of the Force) Doesn't Stand a Chance

Nighttime lights: The not-so-dark side of the Earth - Geoawesomeness

Watch The Dark Side of Light

What too much artificial light steals from our night skies

The Dark Side of the Earth is Not Lit by the Sun with Bright City Lights. 3D Animation with a Detailed Satellite Map Stock Footage - Video of cosmos, city: 189592692