Space Mirrors to Light Up Earth at Night

A U.S. startup named Reflect Orbital is developing a novel concept to illuminate Earth at night using a constellation of mirrors in orbit. Pending FCC approval, the company plans to launch a prototype satellite featuring a 60-foot mirror, designed to cast light onto a three-mile-wide area on the planet's surface. From Earth, this satellite would appear as a bright dot, comparable to the luminosity of a full moon.

The company's ambitious plan involves deploying 1,000 larger satellites by the end of 2028, with a long-term goal of 5,000 by 2030. The largest mirrors are projected to be 180 feet wide, with the capacity to reflect light equivalent to 100 full moons. Reflect Orbital's CEO, Ben Nowack, stated the aim is to create a sustainable energy source and has secured over $28 million in funding.

These artificial light sources could serve various purposes, including one-time events and emergency situations. Nowack also envisions potential revenue sharing with solar farms, utilizing the extended daylight hours for increased electricity generation. However, the technology faces criticism regarding potential interference with aviation, astronomical observations, and wildlife, though the FCC's review primarily focuses on radio interference and safe decommissioning.