The Federal Communications Commission has given the green light to a California startup's plan to deploy a space-based mirror that would beam sunlight onto parts of Earth shrouded in darkness. The approval, granted July 9, allows Hawthorne-based Reflect Orbital to launch its experimental satellite, Eärendil-1, into low Earth orbit.
In a statement, the company hailed the decision as "hugely validating" and a sign of American leadership in space technology. "We're excited to validate the guardrails we have built into our technology to mindfully operate our test satellite," Reflect Orbital said, adding that it aims to prove "that sunlight from space can be an important part of humanity's clean-energy future and provide critical lighting at night to save lives."
The satellite, named after a character from J.R.R. Tolkien's "The Lord of the Rings," is designed to use an 18-meter reflector to illuminate areas 5 to 6 kilometers in diameter for brief periods. According to the company, the reflected light would be diffuse and nearly identical to natural daylight, allowing existing solar panels to generate power at night and reducing reliance on fossil fuels. "Panels, inverters, interconnection capacity, and land can all be utilized more effectively," the company argued in an April report.
But the mission has drawn sharp criticism from scientists and environmental groups. During the FCC's regulatory review, nearly 2,000 public comments were filed, with organizations including the American Astronomical Society, the Royal Astronomical Society, and DarkSky International warning of potential harm to aviation safety, ecosystems, and astronomical research.
DarkSky International, which advocates for reducing light pollution, said it is exploring legal avenues to block the satellite's launch and operation. The group accused the FCC of sidestepping broader environmental concerns. "The FCC concluded that it lacks the authority to evaluate the environmental impacts of an orbital solar reflector, limiting its review to radiofrequency spectrum," DarkSky stated. "This leaves critical concerns—including impacts on wildlife, astronomy, public safety, and the nighttime environment—largely unaddressed and highlights a significant gap in how emerging space technologies are regulated."
In a December 2025 statement, DarkSky warned that moving beams of light from space-based mirrors could create sudden flashes, glare, or sweeping illumination patterns if systems malfunction. "These effects pose risks to night vision, aircraft operations, drivers, and observers using binoculars or telescopes," the group said. It also argued that reflected light could damage sensitive instruments at observatories and that debris from micro-impacts could clutter an already crowded orbital environment.
The controversy echoes earlier debates over space-based interventions, such as the ongoing push for permanent daylight saving time, which also sought to alter daily light patterns. Critics say Reflect Orbital's project could disrupt nocturnal ecosystems, accelerate biodiversity loss, and interfere with human sleep and metabolic processes.
Reflect Orbital has defended its technology, emphasizing that it would not use lasers or concentrated solar power. The company insists it is committed to being "good stewards of space." Still, the regulatory gap highlighted by DarkSky suggests that as space-based technologies proliferate, the framework for evaluating their environmental and safety impacts remains incomplete.
