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

Recent News

Only 5 Days Left to Make Twice the Difference!

Logo for IDA's Matching Gift Campaign. A photo of the Milky Way with mountains in the background and the text "Don't Miss Your Chance to Double Your Impact."

We have incredible news! Several of IDA’s generous donors have stepped up to combine their resources to match, dollar for dollar, every gift that we receive by August 9, up to $100,000! That means your […] Read More

Join for our 2015 Annual General Meeting

One Coin - Two Sides

The International Dark-Sky Association is thrilled to announce that our 26th Annual General Meeting will be held November 14-15, 2015, in Phoenix, Arizona. This year's conference theme is “One Coin ~ Two Sides: Impacts of […] Read More

5 Things You Can Do to Protect the Night Sky

Person standing under a natural arch at Arches National Park with the Milky Way over head

Light pollution affects everybody! The good news is that light pollution, unlike many other forms of pollution, is reversible and each one of us can make a difference. Here are a few easy, practical solutions […] Read More

Dark Skies and Northern Lights

Dark Skies and Northern Lights Image

Jonathan Babb, a high school biology teacher from Tucson, Arizona, recently sent us this photo looking for a some help in explaining the strange “pink hue” in night sky images he took during a recent visit […] Read More


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Learn what you can do at home and in your community to reduce light pollution.

Our Programs

Light Pollution Affects Us All!






How You Can Help

Support IDA

More than half of our annual operating budget comes from our supporters … folks like you! Our generous members and donors are the lifeblood of our organization and are passionate about protecting the night skies.

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Learn What You Can Do

Our members and supporters are on the ground making a difference every day by spreading the word about light pollution to their neighbors, communities and public officials. You can make a difference, too! Become a leader in night sky protection.

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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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