FCC Clears 1 Space-Mirror Satellite as Scientists Warn 50,000 Could Brighten Skies 4-Fold
Updated
Updated · Scientific American · Jul 16
FCC Clears 1 Space-Mirror Satellite as Scientists Warn 50,000 Could Brighten Skies 4-Fold
3 articles · Updated · Scientific American · Jul 16
Summary
Last week’s FCC order lets Reflect Orbital proceed with Eärendil-1, an 18-meter test satellite designed to beam “sunlight on demand” for solar plants, rescue operations and nighttime construction.
The agency said optical impacts were beyond its authority, weighing the “small risk” from a single experimental craft against the benefits of testing U.S. space technology despite more than 1,800 public comments.
Astronomers say the direct beam could damage telescope sensors and eyes, while scattered light would pollute surrounding skies; the satellite could appear up to four times brighter than a full moon.
A European Southern Observatory simulation found Reflect Orbital’s planned 50,000-satellite fleet could make the global night sky three to four times brighter, disrupting wildlife and undermining much astronomical observing.
The dispute is sharpening calls for Congress and international bodies to create oversight beyond the FCC, with the American Astronomical Society and G7 science academies pushing broader rules on satellite environmental impacts.
Why does the FCC's 'public interest' duty apply to radio waves but not to giant mirrors that can alter the night sky?
Is one startup’s test worth risking a cascade of orbital collisions that could render space unusable for generations?
Could lighting disaster zones from space cost us our view of the universe and disrupt the natural world forever?
Space Mirrors in Orbit: The Earendil-1 Satellite, FCC Approval, and the Global Debate Over Light Pollution and Environmental Impact
Overview
In March 2026, the FCC approved Reflect Orbital's Earendil-1 prototype satellite, marking a major step toward space-based illumination. This decision followed strong global interest and many requests for help, such as aiding search-and-rescue after a Venezuelan earthquake. Reflect Orbital developed its technology to meet these needs, aiming for Earendil-1 to lead a system that delivers targeted light and energy from orbit. The satellite’s focused beam is designed to turn away after lighting its target, showing the company’s intent to provide precise, responsible illumination while addressing real-world demands.