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Photos: Light Pollution Shines in 'The City Dark'

Ian Cheney, Filmmaker

The City Dark/Wicked Delicate Films

The bright lights in many cities block all the stars in a hazy glow, as seen in this still from the new documentary "The City Dark."

Tribute in Light

The City Dark/Wicked Delicate Films

Light pollution is so common that hardly any stars are visible in many cities around the world.

Observatory in "City Dark" Movie

The City Dark/Wicked Delicate Films

Astronomers have been forced to go farther and farther afield to find dark enough skies.

Birds Killed by Light Pollution

The City Dark/Wicked Delicate Films

Migrating birds can become disoriented by brightly lit buildings at night, causing many of them to crash into walls.

Observatory Interior from "City Dark" Movie

The City Dark/Wicked Delicate Film

Some of the best night skies are found in extremely remote locations, far from any city lights.

Brooklyn Streetlight in "City Dark" Documentary

The City Dark/Wicked Delicate Films

The documentary "The City Dark" explores what happens to people and animals when the stars are no longer visible at night.

Observatory in Hawaii from "City Dark" Documentary

The City Dark/Wicked Delicate Films

The filmmakers behind "The City Dark" travel to some of the few spots left on the globe with pristine views of the sparkling night sky.

Skywatching Attempt in Times Square

The City Dark/Wicked Delicate Films

Frustrated skywatchers in big cities may find it hard to spot even a single star from some brightly-lit locales.

Arizona Sky Village

The City Dark/Wicked Delicate Films

Some people, such as residents of the dark-sky community Arizona Sky Village, are choosing to live as far from city lights as possible.

Trespassing Light

The City Dark/Wicked Delicate Films

There is some evidence that exposure to bright lights at night may lead to increased cancer rates.

New York City, Capital of Light Pollution

The City Dark/Wicked Delicate Films

New York City is one of the most light-polluted spots on an increasingly over-lit Earth.

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