Astronomy relies on observing dark and quiet skies. However, dramatically increasing numbers of satellites are being launched in constellations for communications, earth observation, compute capacity, and more - around 15,000 satellites are already in orbit, and millions more are being planned. These can impact observations across optical, radio, infrared, and submillimetre wavelengths, affecting both ground- and space-based observatories.
We are now at a critical point: proposals for more communications satellites; space-based mirrors, and orbital AI data centres could fundamentally change the sky and pose an existential threat to astronomy. Decisions made now will shape the space environment for decades.
This specialist discussion meeting will bring together astronomers and other stakeholders to discuss these impacts and, crucially, consider what we can do about them. Topics include observational and technical mitigation; multi-wavelength coordination; communicating the case for astronomy; space safety/sustainability, environmental impacts; and steps to developing effective regulatory and policy responses.
Abstract submission: https://forms.gle/7B5JdiGW8md2S2259
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Convenor
Dr Mike Peel