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Be a citizen-scientist: measure the darkness of a total solar eclipsed sky!

Be a citizen-scientist: measure the darkness of a total solar eclipsed sky! Thumbnail

If you are on or near the centerline of the path of totality during the solar eclipse on August 21, 2017, you are able to participate in an activity to observe and record the faintest stars visible as a… Read More

Small Changes, Big Impact

Small Changes, Big Impact Thumbnail

IDA approved Dark Sky Friendly fixtures light only the ground where light is needed. It’s a simple idea that saves energy and reduces skyglow to preserve our view of the night sky. A consumer-based lighting… Read More

Lights at Night Turn Nocturnal Pollinators Off

Lights at Night Turn Nocturnal Pollinators Off Thumbnail

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

Fireflies Need the Dark to Talk with Light Thumbnail

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

Like moths to a flame: National Moth Week, and how you can help our nighttime wildlife

Like moths to a flame: National Moth Week, and how you can help our nighttime wildlife Thumbnail

Next week, as night falls, people across the USA and around the world will be found huddled in groups, waiting, staring into bright light sources. This is not some strange cult or ritual; in fact… Read More

Seabird Fatalities Caused by Artificial Lights

Seabird Fatalities Caused by Artificial Lights Thumbnail

By guest writer Airam Rodríguez, postdoctoral researcher at Estación Biológica de Doñana CSIC, Spain Human alteration of natural light levels in the environment increases every year and leads to the loss of natural nightscapes worldwide. Light… Read More

Notes from IDA at the 37th Annual Sea Turtle Symposium

Notes from IDA at the 37th Annual Sea Turtle Symposium Thumbnail

  The International Sea Turtle Society’s 37th Annual Sea Turtle Symposium on Sea Turtle and Biology (ISTS) was attended by IDA’s Technical Director Pete Strasser, who was invited to give a presentation about IDA’s work… Read More

International Dark Sky Week: 5 Ways to Support Dark Skies Right Now

The nighttime environment is a crucial natural resource for all life on Earth, but the glow of uncontrolled outdoor lighting has hidden the stars, radically changing the nighttime environment. International Dark Sky Week draws attention… Read More

LIMITED EDITION IDA Poster by Tyler Nordgren

Artist Tyler Nordgren, widely known for his classic images of the night sky and other wondrous landscapes, has generously created 100 limited edition, signed and uniquely numbered posters for 2017 International Dark Sky Week. This… Read More