FCC Approves Orbital Sun-Reflectors, Igniting Astronomy Alarm Over Night Sky

The US FCC has approved Reflect Orbital’s plan to launch a constellation of sun-reflecting satellites, beginning with the 60‑foot Eärendil-1 prototype, to illuminate dark areas and support solar power after sunset. The project envisions up to 50,000 mirrors by 2035, but astronomers warn the mirrors could disrupt observations and light pollution, while biologists voice concerns about ecological and circadian impacts. Critics question whether such a fleet is feasible or safe, even as the company touts a possible fossil-fuel替ing energy source, and public comments on the proposal were highly critical.