First Sunlight-Reflecting Space Mirror Cleared for Launch

Reflect Orbital has been given the green light to launch its first space mirror that aims to redirect sunlight down to Earth at night. The US Federal Communications Commission (FCC) has authorized the California-based startup to build and operate a single prototype satellite in low-Earth orbit later this year, despite concerns over how the technology could impact optical astronomy. The satellite, named Eärendil-1 in reference to a Tolkien character, will attempt to redirect sunlight to specific areas on Earth after dark using a 59-foot (18-meter) reflective surface.

If successful, Reflect Orbital plans to launch and operate a constellation of similar satellites. The FCC's approval comes with conditions. The agency has imposed specific requirements on Reflect Orbital to mitigate potential impacts on astronomy.

The company must ensure its satellite does not interfere with existing space-based observatories. Reflect Orbital will also have to provide regular updates on its satellite's performance and any adjustments made to its operations. Why this matters: The launch of Reflect Orbital's space mirror could have significant implications for the satellite industry and astronomy.

If successful, this technology could pave the way for a new generation of satellites that can manipulate and redirect solar energy. For developers and businesses, this could mean new opportunities for innovative applications and services. However, concerns about the potential impact on optical astronomy and the long-term sustainability of such technology remain.

As the satellite constellation grows, ensuring responsible operation and minimizing interference with existing space-based observatories will be crucial. Open questions about the scalability and safety of this technology will need to be addressed as Reflect Orbital moves forward with its plans.