International Dark-Sky Association

The International Dark-Sky Association is the only non-profit organization fighting to preserve the night. Join us as we work to protect wildlife, cut energy waste and stop light pollution. Join IDA>>

IDA's New Book:

Fighting Light Pollution book

For home owners, renters, stargazers, nature-lovers, business owners, community leaders, and public officials--anyone with an interest in efficient and effective lighting. Order your copy today!

IDA on CNN Radio

Listen to IDA's Scott Kardel talk with CNN's Jim Ribble about light pollution in Who turned off the stars? Light pollution.

IDA is giving away a set of Tele Vue Ethos eyepieces valued at almost six grand as a fundraiser for dark skies. Here's how you can enter the Dark Sky Giveaway.

The City Dark on PBS

The City Dark, the award-winning documentary film on light pollution, will receive its television broadcast premiere on PBS Thursday July 5th. Be sure to mark your calendars and check your local listings as you will not want to miss seeing this.

Christopher Kyba:

"Light pollution and the Celestial Compass"

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Dark Sky UpdateS

Big Bend National Park Named as International Dark Sky Park. Read IDA Press Release >>

Third International Starlight Conference 11-13 June, 2012. Registration details here >>

Find screenings of The City Dark Details here >>

This E-petition in support of dark skies in the U.K. could use your support. Read and sign here >>

Homer Glen, Illinois Becomes World's Fourth International Dark Sky Community Read IDA Press Release >>

Bird-Friendly Development Handbook The American Bird Conservancy announces the release of Bird-friendly Building Design, a comprehensive guide to bird-safe construction for individuals, architects and contractors. Download Bird-Friendly Building Design >>

City Lights and Urban Air Read more from Nature Geoscience

Celestial Compass Obscured by Urban Light Pollution for Some Nocturnal Animals Read more from Science Daily

BioBlitz starcount in National Geographic Newswatch The GLOBE at Night program coordinated a Tucson-wide night sky inventory during the 2011 National Geographic BioBlitz in Saguaro National Park. Read more >>

Dimming the lights
This thoughtful editorial looks at towns where public lighting has been dimmed, removed, or shut off and finds no increased crime to date. Read article >>

IDA "led the effort to measure the impact of light on the park units" with NOAO and the NPS Night Sky Team About 70 volunteers carried Sky Quality Meters and took repeated measurements at regular intervals to measure the impact of light pollution during the first night of the National Geographic-sponsored BioBlitz on 21-22 October. Read "How Dark is Dark?"

Exmoor National Park becomes Europe's first (world's second) International Dark Sky Reserve Read more from BBC News >>

Looking to the stars: Remembering IDA Board member Christopher W. Walker Read more>>

Two local Grade 9 students win international poster competition Read More>>

Light Pollution & Night Sky Friendly Alternatives Read article>>

Borrego leads dark-sky movement Read article >>

Texas legislators pass HB2857 to protect skies surrounding McDonald Observatory Read more >>

Galloway Dark Sky Park 'helps insects' Buglife reports The UK's first Dark Sky Park an example of how invertebrates could be protected from harm caused by artificial light. Read more >>

Read study from Buglife >>

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