Donate Join

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

Recent News

The Story of Libra Ω

Help us protect night skies by adopting a constellation! Your gift will be matched dollar for dollar through August 3. DONATE NOW TO ADOPT LIBRA The Story of Libra “The Scales” The stars that make Libra used to be viewed as […] Read More

How Light Pollution Affects the Pennsylvanian Ecosystem

How Light Pollution Affects the Pennsylvanian Ecosystem Image

By guest writer, Craig Campbell As little as 100 years ago, it was possible to look up in the sky at night and see millions of stars spread across the Milky Way. Now, there are […] Read More

Artificial Light at Night May be Contributing to “Ecological Armageddon”

Artificial Light at Night May be Contributing to “Ecological Armageddon” Image

In 2017, drastic declines of insects were reported by a team of scientists in Germany. The research indicated that the biomass of flying insects decreased more than 75% over the 27-year study period.1 In a […] Read More

The Story of Libra Ω

The Story of Libra Ω Image

Help us protect night skies by adopting a constellation! Your gift will be matched dollar for dollar through August 3. DONATE NOW TO ADOPT LIBRA The Story of Libra “The Scales” The stars that make Libra used to be viewed as […] Read More

GET INVOLVED

Join Our Email List

Get important news, calls to action and other updates delivered directly to your inbox.


Become a Member

For as little as $35 a year you can join us on our mission to protect the natural night sky.

Make a Donation

Your contributions help us continue our programs and increase our public outreach.

Take Action

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

Our Programs

Light Pollution Affects Us All!

Wildlife

Health

Energy

Heritage

Safety

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.

Learn More

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.

Learn More

Stay Informed

Join our email list and get current news, calls to action, press releases and other important information delivered directly to your inbox. You can unsubcribe anytime.