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The International Dark-Sky Association works to protect the night skies for present and future generations.

Recent News

You Can Make Twice the Difference!


Here’s Your Chance to Make Twice the Difference Protecting Night Skies! We have great news! Several of IDA’s committed donors have generously combined their resources to match, dollar for dollar, every gift we receive until July 31 … up […] Read More

IDA Dark Sky Places Photo Contest is Now Open

IDA Dark Sky Places Photo Contest is Now Open Image

The 2017 International Dark-Sky Association Calendar Contest is now open for submissions! This year we’re looking for stunning night sky images from IDA-designated International Dark Sky Places (click here for an interactive map to see where IDA-designated Dark […] Read More

The Psychology of Dark Skies

An aerial photo of Sark, Channel Islands.

By Guest Writer Ada Blair I’ve been a regular visitor to the Isle of Sark since 2010 when a close friend of mine moved there. Sark, at only 5.5 square kilometres, is the smallest of the […] Read More

Really, Really Bad Lighting

An "acorn" outdoor street light at night gives off a lot of glare because it's not shielded.

We’ve all seen examples of good and bad lighting, but every once in a while there’s an example of lighting that is extremely bad. We present to you four examples of the some of the […] Read More

Eyes In The Sky: Exploring Global Light Pollution With Satellite Maps

Eyes In The Sky: Exploring Global Light Pollution With Satellite Maps Image

Billions of people around the world routinely experience light pollution in the form of skyglow, the ever-present “haze” of light over cities at night. It comes from light on the ground scattering in the atmosphere […] Read More


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"It’s important to support the only nonprofit organization whose sole purpose is to combat light pollution and keep the stars bright! I have donated to IDA for years, and I plan to do so for years to come."


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