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Startup aims to beam sunlight from space using mirrors | Bringing sunlight to Earth at night, a bold new step in renewable energy
At the heart of Reflect Orbital's project are its Mylar mirrors. Each satellite will unfurl a 33-by-33-foot sheet of lightweight polyester film known for its durability and...
Reflect Orbital is developing a constellation of satellites with giant Mylar mirrors to beam sunlight back to Earth after dark – an idea that offers bold potential but faces steep engineering hurdles. The satellites weigh about 35 pounds, making launches cheaper, and once in low Earth orbit, they'll aim sunlight at solar plants or other areas needing nighttime illumination. Each mirror must constantly adjust its attitude and orientation, using advanced control systems – likely reaction wheels or similar actuators – to track both the Sun and its Earth-bound target.
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