Check out the latest edition of Nightscape to learn about all things IDA and night sky conservation. To receive IDA’s informative and inspirational Nightscape, become an IDA member.
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IDA Annual Reports
2020 IDA Annual Report: Nightscape #105
2019 IDA Annual Report: Nightscape #103
2018 IDA Annual Report: Nightscape #101
2017 IDA Annual Report: Celebrating 30 Years
2016 IDA Annual Report: Nightscape #98
2015 IDA Annual Report: Nightscape #96
2014 IDA Annual Report: Nightscape #94
2013 IDA Annual Report: Nightscape Issue #92
Get the most current information about IDA, research on artificial light at night, protecting night skies, and much more. Our blog contains timely and useful information brought directly to you from IDA and other experts in the field.
IDA Study on Blue-Rich White Light
Read the full study:
Visibility, Environmental, and Astronomical Issues Associated with Blue-Rich White Outdoor Lighting (PDF)
Read the executive summary:
Seeing Blue (PDF)
IDA Guidelines for Community Friendly Outdoor Sports Lighting