The US Approves Launch of Mirror Satellite That Can Reflect Sunlight and Illuminate the Earth at Night

The **FCC** has granted regulatory approval to **Reflect Orbital** to launch **Eärendil-1**, a mirror satellite engineered to reflect sunlight directly onto the Earth at night.

The underlying mechanics of **Eärendil-1** center on using an orbiting reflector system to catch light from the sun outside the planet shadow and redirect that illumination to designated positions on the ground.

For hardware engineers and researchers maintaining ground-based optical detection systems, light redirection creates direct operational disruption. The **European Southern Observatory** cautioned that for optical astronomy, this technology poses an existential threat by obscuring night sky observations.

Coverage from **Wired** underscores how **Reflect Orbital** secured official **FCC** authorization despite severe pushback from scientific institutions, setting a regulatory precedent for commercial sunlight-reflection satellites.

Astronomers and satellite operators must now monitor the operational trajectory of **Eärendil-1** to evaluate how **Reflect Orbital** manages orbital light reflection alongside environmental and scientific constraints.