Can Space Mirrors End Nighttime Darkness? The Truth About Artificial Sunlight

Artificial Sunlight On Demand: How Space Mirrors Could Light Up the Night | MG World Vision Artificial Sunlight On Demand: How Space Mirrors Could Light Up the Night A look at the technology promising night-time sunlight for solar farms, the startups behind it, and why astronomers and biologists are uneasy. Published: October 11, 2025 | By MG World Vision ``` What is "Sunlight On Demand"? "Sunlight on demand" refers to a bold idea: redirect sunlight from space to specific locations on Earth when sunlight is otherwise unavailable. The plan uses orbiting mirrors or reflective satellites to bounce sunlight toward ground targets — for example, to illuminate solar farms during nighttime hours so they can continue generating electricity. How the technology would work The basic concept is straightforward: place a network of reflective satellites or large mirrors in orbit, position them t...