WASHINGTON, Oct. 16: US based space technology startup Reflect Orbital plans to provide sunlight to selected locations on Earth after dark using satellites equipped with large reflective mirrors, with India’s Skyroot Aerospace set to support the initiative through two rocket launches.
The California-based company intends to develop a constellation of satellites capable of redirecting sunlight towards specific areas on the planet. The proposed service could be used to illuminate disaster-hit regions during search-and-rescue operations, support industrial activities in remote locations and extend the operating hours of solar power facilities.
Reflect Orbital has signed a contract with Hyderabad-based Skyroot Aerospace for two launches aboard its Vikram rocket family, marking a collaboration between the emerging space companies.
The startup said the agreement would provide additional launch capacity and scheduling flexibility alongside its other planned missions from US launch sites.
Skyroot Aerospace co-founder and chief executive Pawan Chandana welcomed the partnership, describing the project as an innovative application of space technology that could create new possibilities for activities on Earth.
Reflect Orbital co-founder and CEO Ben Nowack also expressed enthusiasm about working with a new launch provider, saying access to space would be important for the company’s plans.
Under the agreement, the first mission is expected to use Skyroot’s Vikram-1 rocket, while the second will use the company’s Vikram-1U launch vehicle, which is under development. The Vikram-1U is designed with additional first-stage boosters and improved performance, according to the companies.
How the proposed sunlight service would work
Reflect Orbital’s concept involves deploying satellites fitted with reflective surfaces that can redirect sunlight towards designated locations on Earth. By positioning the spacecraft in suitable orbits, the company hopes to deliver controlled illumination to specific areas after sunset.
The startup intends to offer adjustable brightness and the ability to switch the service off when it is no longer required. Its proposed coverage area is approximately five kilometres across, although actual performance would depend on the satellite’s orbit, mirror design, atmospheric conditions and the geometry of sunlight reaching the spacecraft.
The company envisages a service that could be requested for particular locations and times rather than providing continuous illumination everywhere.
If successfully developed, the system could offer an alternative source of temporary lighting for locations where conventional infrastructure is unavailable, expensive or difficult to deploy. However, the technology’s practical performance, operating costs and commercial viability will need to be established through testing and operational experience.
Potential uses in emergencies and industry
One of the proposed applications is emergency response. Following earthquakes, floods or other disasters, rescue teams sometimes operate in areas where electricity supplies and lighting infrastructure have been damaged.
A satellite-based illumination service could potentially provide additional light for selected locations, helping emergency personnel conduct searches or organise operations during darkness. Such a system would need to complement, rather than replace, established emergency lighting and rescue equipment.
Reflect Orbital has also identified remote industrial operations as a possible market. Facilities operating in isolated areas could use additional illumination to extend working hours, subject to safety requirements and the availability of the service.
Another proposed application involves solar energy. By redirecting sunlight towards solar farms after sunset, the company hopes to extend electricity generation beyond normal daylight hours.
However, the effectiveness of such an arrangement would depend on several technical factors, including the intensity and duration of reflected light, the efficiency of solar panels under those conditions, atmospheric losses and the energy required to operate the satellite network. The commercial benefits would need to be compared with other options for supplying electricity after dark, including battery storage.
The company has also suggested that controlled illumination could be used at public events and for certain security-related activities. These applications would require careful planning to ensure that lighting does not create hazards or interfere with nearby communities.
Regulatory approval and the next phase
Reflect Orbital received approval from the US Federal Communications Commission in July to construct, launch and operate a demonstration satellite, according to the company.
The permission represents a step towards testing the concept, but a demonstration mission will be important for determining whether the proposed service can deliver useful illumination under real operating conditions.
The company has said it will continue engaging with astronomers, local communities and regulators as it develops its technology and considers expanding the system.
The planned collaboration with Skyroot Aerospace gives Reflect Orbital another launch option as it works towards deploying its initial spacecraft. For Skyroot, the agreement represents a potential opportunity to demonstrate its launch capabilities through an international commercial partnership.
The two companies have not established through the announced agreement alone that a fully operational commercial constellation is ready for deployment. Further development, testing and regulatory engagement will be necessary before the service can be assessed at scale.
A concept with historical precedents
The idea of reflecting sunlight from orbit is not entirely new. In 1993, Russian scientists and engineers conducted the Znamya experiment, deploying a large reflective structure in space to direct a moving patch of sunlight towards Earth.
The experiment demonstrated that sunlight could be redirected from orbit under suitable conditions. However, the programme did not develop into a sustained commercial service and was eventually discontinued.
Reflect Orbital is seeking to revisit the concept using modern satellite technology and commercial launch services. Its approach aims to make illumination available on demand, potentially creating a market for targeted lighting from space.
The engineering challenges remain considerable. Satellites must be positioned accurately, reflective surfaces must operate reliably, and the illumination must be sufficiently predictable to be useful to customers. The system would also need to address orbital safety, spacecraft control and the effects of repeated light exposure on the ground.
Environmental and astronomical concerns
The proposal has attracted criticism from environmental organisations and other observers who are concerned about the consequences of introducing artificial light into the night environment.
Astronomers have warned that bright reflected light could interfere with observations of faint celestial objects. Even brief illumination events could affect certain observations, depending on their brightness, duration, location and timing.
Wildlife is another concern. Many species depend on natural patterns of daylight and darkness for feeding, migration, reproduction and other behaviours. Artificial illumination may alter these patterns, particularly for nocturnal animals and species that use darkness to navigate.
Researchers have also raised questions about potential effects on human circadian rhythms, the internal biological processes that help regulate sleep and wakefulness. The health implications would depend on factors such as light intensity, wavelength, duration and exposure patterns.
Environmental groups have urged regulators to reconsider the permissions granted for the demonstration satellite. Their concerns highlight the need to assess the effects of the technology before moving towards large-scale deployment.
Supporters of the concept argue that targeted illumination could provide useful services in carefully selected situations. However, the balance between potential benefits and environmental costs remains an important question for regulators and researchers.
A balance between innovation and responsibility
Reflect Orbital’s plans illustrate how commercial space companies are exploring applications that extend beyond communications, navigation and Earth observation.
The partnership with Skyroot Aerospace could help the startup move towards an orbital demonstration, but the technology’s long-term prospects will depend on more than its ability to reflect sunlight.
Reliable operations, affordable pricing, regulatory compliance and evidence of practical benefits will all influence whether the service can become commercially viable. Environmental safeguards and consultation with scientific communities will also be essential.
As the project progresses, the central challenge will be determining whether sunlight delivered from orbit can serve genuine needs without imposing unacceptable costs on the natural night environment or scientific research.
For now, the agreement marks an early step in an ambitious attempt to turn reflected sunlight into a commercial service. Its eventual success will depend on the results of technical demonstrations and the ability of the companies to address concerns raised by regulators, astronomers and environmental organisations.