An ESO astronomer sets the sky's limit at 100,000 faint satellites (eso.org)
Operators have filed for 1.7 million satellites; an ESO study finds ground astronomy breaks past 100,000, calling the rest 'devastating.'
The proposed fix is a brightness floor of magnitude 7. SpaceX's mooted million would streak dozens of trails across each VLT frame; Reflect Orbital's 50,000 mirrors would outshine Venus.
The thread pitted progress against dark skies and flagged the launcher missing from the doom list: China.