California-based startup, Reflect Orbital, has proposed a constellation of satellites that would reflect beams of light onto Earth. The company plans to deploy up to 50,000 in-space mirrors mounted on satellites to create sunlight after dark, charging about $5,000 per hour for the light of a single mirror in space. However, concerns have been raised by astronomers about the potential risks posed to the night skies, which have been severely compromised by the number of satellites already in Earth orbit. The technology could also be used to illuminate disaster zones and search-and-rescue missions, extend working hours for industrial sites, increase agricultural yields and extend cycles, and reduce light pollution by replacing city lights.