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Retrofit Gone Right: Q&A with Tim Brothers

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A portion of the following originally appeared as an article in Nightscape #107 (March 2022).  To enjoy new issues of Nightscape all the time, become a member.   Get to know Vice President of IDA… Read more

International Dark Sky Places Program Advocacy – A Review of 2020-2021 Annual Reports

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One of the primary goals of an International Dark Sky Place is to encourage communities and protected areas to become environmental leaders by communicating the importance of dark skies to the general public and providing… Read more

Register Now for the Responsible Outdoor Lighting at Night Conference (ROLAN 2022)

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The International Dark-Sky Association is pleased to announce that we are a founding partner of the Responsible Outdoor Lighting at Night Conference (ROLAN 2022). ROLAN 2022 is a two‐day online conference taking place May 12-13… Read more

Fixture Seal of Approval Program Expands Global Presence

Fixture Seal of Approval Fixtures mounted on the exterior of a building and pointing warm light downward.

Since its inception in 2002, IDA’s Fixture Seal of Approval Program has provided certification for dark sky-friendly lighting that minimizes glare, reduces light trespass, and doesn’t pollute the night sky. These dark sky-friendly fixtures provide… Read more

A Values-Centered Approach to Nighttime Conservation

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IDA’s Board of Directors adopted a policy implementing the Five Principles for Responsible Outdoor Lighting on January 28, 2021. The Policy is intended to inform IDA’s ongoing work to protect the night from light pollution… Read more

Report from Tokyo: The Great Achievement of a Small Island

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  This is a guest post written by Nobuaki Ochi of IDA Tokyo. Kozushima is a small island located about 180 km south of central Tokyo and is home to the Village of Kozushima with… Read more

Experiment uses smart city lighting to measure streetlight emissions

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When satellites take pictures of Earth at night, how much of the light that they see comes from streetlights? A team of scientists from Germany, the USA, and Ireland have answered this question for the… Read more

It’s Earth Day! Is your home lighting nature, neighbor and night sky friendly?

What better way to celebrate Earth Day (and Night!) than by making your home dark sky friendly? In recognition of International Dark Sky Week, IDA has released a simple home lighting assessment to help you… Read more

Women and Girls in the Dark Sky Movement

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February 11th is the International Day of Women and Girls in Science, a day to celebrate the incredible contributions women have made to science and technology, highlight the gender inequities in the industry, and inspire… Read more

What Does Lettuce Have To Do With My Night Sky?

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by John C. Barentine, Ph.D. Director of Public Policy Residents of cities in towns in North America and Europe increasingly report strange glows in the night sky. Arizonans see their skies light up bright purple… Read more