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How Light Pollution Affects the Pennsylvanian Ecosystem

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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”

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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

Call for Abstracts for the 2018 Annual General Meeting

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Looking Up! 30-Years of Dark Sky Advocacy IDA’s 30th Annual General Meeting November 9-11, 2018 | Snowbird, Utah The International Dark-Sky Association is pleased to invite you to the 30th Annual General Meeting which will… Read More

Can Salmon Help Save the Night Sky?

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“Salmon could help save the night sky,” says Jack Sales, Chapter leader of IDA California. Sales is concerned about many environmental issues near Sacramento, including the decline of salmon populations. Sales says that learning about… Read More

West Nile Virus Infectious Longer in Birds Exposed to Artificial Light at Night

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Artificial light at night doesn’t just affect our ability to see the stars — it also impacts complex ecological interactions and disease transmission factors, with the potential to have profound effects on human health.   What… Read More

Bird Migration Dramatically Altered by High-intensity Urban Light Installation

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By: Meg Schader for the International Dark-Sky Association Tribute in Light in New York City projects two beams of light into the sky as an annual memorial to the victims of 9/11. The tribute also… Read More

Nobel Prize Awarded for Discovery of Molecular Mechanisms Controlling the Circadian Rhythm

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The Nobel Assembly at Karolinska Institute today announced the 2017 Nobel Prize in Physiology or Medicine is awarded jointly to Jeffrey C. Hall, Michael Rosbash and Michael W. Young “for their discoveries of molecular mechanisms… Read More

Lights at Night Turn Nocturnal Pollinators Off

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Pollination is essential for the reproduction of many plant species. Some flowering plants rely on the wind or water to spread their pollen, but most depend on animals for pollination. Insects like bees, moths, and… Read More

Fireflies Need the Dark to Talk with Light

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The Effects of Light Pollution on Fireflies As light pollution spreads across our planet, we have to venture to more remote areas to enjoy the night skies. This is a minor inconvenience compared to the… Read More

“All Living Things on Earth Need and Deserve a Night Sky”

“All Living Things on Earth Need and Deserve a Night Sky” Thumbnail

  Growing up on Norfolk Island in the South Pacific exposed me to one of the darkest and least light polluted skies on earth. As a child, I would marvel at the impossibly huge number… Read More