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IAU CENTRE FOR THE PROTECTION OF THE DARK AND QUIET SKY FROM SATELLITE CONSTELLATION INTERFERENCE

CPS

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CPS Newsletter #1

CPS Newsletter #1

March 28, 2025
Welcome to the first edition of the CPS members newsletter.
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UN Meeting Features Satellite Impact on Astronomy

UN Meeting Features Satellite Impact on Astronomy

Feb. 19, 2025
A key UN body on which IAU and SKAO members are represented included discussions on the impact of satellite constellations on astronomy on its agenda for the first time
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Major U.S. Grant Awarded to CPS-led Satellite Mitigation Project

Major U.S. Grant Awarded to CPS-led Satellite Mitigation Project

Aug. 8, 2024
U.S. National Science Foundation awards $750,000 to project led by the IAU Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference to minimize the science impact…
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Our mission is to protect the sky

The International Astronomical Union (IAU) is deeply concerned about the increasing number of launched and planned satellite constellations in mainly low Earth orbits. The IAU embraces the principle of a dark and radio-quiet sky, not only as essential to advancing our understanding of the Universe of which we are a part, but also for the cultural heritage of all humanity and for the protection of nocturnal wildlife.

The IAU Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference (CPS) coordinates collaborative multidisciplinary international efforts with institutions and individuals and works across multiple geographic areas to help mitigate the negative impact of satellite constellations on ground-based optical and radio astronomy observations as well as on humanity’s enjoyment of the night sky.

10
Launched Satellite Constellations
7182
Operational Constellation Satellites
8026
Total Launched Constellation Satellites
22
Satellite Constellations in Planning
560127
Planned Constellation Satellites
437
Affiliated CPS Members

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+33 1 43 25 83 58
Address
98-bis Blvd Arago, F–75014 Paris
Email
info@cps.iau.org