A new Smithsonian Magazine story highlights a startup with a sci-fi plan: launching giant mirrors into orbit to bounce sunlight back to Earth after dark. The idea promises cleaner illumination, but astronomers are waving the red flag. These mirrors would appear as bright moving streaks across the sky, adding to the rapidly growing glow that already disrupts wildlife, human health, and scientific research.
Researchers are especially worried about the impact on astronomy. Bright satellites already interfere with telescope observations, and space mirrors could make that problem far worse. Another disturbing threat would be to migratory birds and other wildlife that depend on natural day/night cycles to survive.
For those of us working to protect natural darkness here on the Olympic Peninsula, the message is simple: the best solutions are still on the ground. Fully shielded, warm, low-level lighting – used only when needed – remains the most effective way to preserve the night sky we all depend on.
photo: Starlink satellite train as seen from M.B Gonnet, Buenos Aires, Argentina by BugWarp
