Startup aims to beam sunlight from space using mirrors

Mylar mirrors in space, beaming sunlight to Earth after dark? It's not science fiction, but the ambitious plan of California startup Reflect Orbital. The company is developing a constellation of satellites to extend solar power production beyond daylight hours.

Each lightweight satellite unfurls a 33-foot square mirror, aiming reflected sunlight at solar plants or other designated areas. But pinpoint accuracy from orbit is no small feat. The mirrors must constantly adjust their position, tracking both the Sun and their earthbound targets.

While early tests with high-altitude balloons show promise, scaling to full orbital deployment presents significant challenges. From atmospheric scattering to space debris concerns, the hurdles are formidable.

Yet the potential is tantalizing. With plans for up to 57 satellites at 600 kilometers altitude, Reflect Orbital envisions on-demand sunlight delivery. It's a bold step towards a new frontier in renewable energy, though still in early stages of development.