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International Dark-Sky Association Establishes Ohio Chapter

The International Dark-Sky Association welcomes a new chapter in Ohio U.S. to support efforts that protect the nighttime environment from light pollution across the state of Ohio.  Light pollution–defined as the inappropriate use of artificial [...]

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

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…
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The Story of Libra Ω

The Story of Libra Ω Thumbnail

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…
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Looking Up! Celebrating 30 Years of Night Sky Advocacy at the 2018 Annual General Meeting Thumbnail

Looking Up! This year, we’re celebrating IDA’s 30th anniversary and the community of scientists, conservationists, policy-makers, and advocates who successfully work together to preserve and protect the natural nighttime environment and our heritage of night…
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Arizona’s Petrified Forest National Park Becomes World’s Newest International Dark Sky Park Thumbnail

The National Park Service and IDA are pleased to announce that Petrified Forest National Park has been officially designated as an International Dark Sky Park. An IDA International Dark-Sky Park (IDSP) is a land possessing…
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Study Links Artificial Light at Night and Cancer Risk Thumbnail

A recent study published in Environmental Health Perspectives investigated the relationship between artificial light at night (ALAN) in Spain and the risk of developing breast or prostate cancer.1 Previous research has shown that night shift…
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Wimberley Valley Cities Become Third International Dark Sky Community in Texas Thumbnail

In recognition of noteworthy local efforts to reduce light pollution and promote the benefits of nighttime darkness, IDA today designated the Wimberley Valley of Texas as an International Dark Sky Community. It is only the…
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The Pull of Dark Sky Islands Thumbnail

By Guest Writer Ada Blair I love visiting islands. I always feel a strong sense of crossing a threshold, entering into a different, more relaxed frame of mind, when I’m on a ferry leaving the mainland…
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New Book Inspires Kids to Explore Night Sky Thumbnail

  Beginning with a list of memories from her own childhood, Joan Marie Galat wrote a book from the perspective of her younger self. Dark Matters—Nature’s Reaction to Light Pollution is Galat’s most recent book…
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Your True Nature: A True Partner Thumbnail

Ilan Shamir founded Your True Nature, a company that produces nature-themed gifts, about 20 years ago. His daughter, Laurel Alyn-Forest, is now helping to run the company and she also serves on IDA’s board.  …
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Tucson, Arizona, U.S. Skyglow Reduced 7% after Street Light Conversion Thumbnail

John Barentine, Director of Conservation at the International Dark-Sky Association, is the lead author of a recent study published online by the Journal of Quantitative Spectroscopy and Radiative Transfer. Although Barentine has previously published papers…
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