Cps.iau.org
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The IAU Centre works to protect dark and quiet skies from satellite interference, supporting astronomy, wildlife, and cultural heritage worldwide.
Protecting dark skies from satellite interference
The IAU Centre for the Protection of the Dark and Quiet Sky (CPS) is dedicated to addressing the challenges posed by satellite constellations, which can interfere with astronomical observations and disrupt the natural night sky. Here, you’ll find resources, news, and technical recommendations aimed at preserving dark and quiet skies for science, culture, and wildlife.
Whether you’re an astronomer, policy maker, industry professional, or simply passionate about protecting the night sky, the CPS offers a space to learn, collaborate, and advocate. The site features background information, community engagement opportunities, policy updates, and ways to get involved—making it a hub for those who care about the future of our skies.
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