British researchers are collaborating to address the issue of satellite light pollution caused by Elon Musk's reflective satellites by utilizing a new super-black paint.

A partnership between Surrey NanoSystems and the University of Surrey is focused on tackling a major concern for astronomers globally. They are exploring the use of Surrey NanoSystems's latest product, Vantablack 310, which is an ultra-black coating.

When Vantablack 310 is applied to a surface, it reflects only 2% of incoming light, absorbing the remaining 98%. This high level of light absorption results in extremely dark surfaces, reducing the unwanted brightness from satellites that can interfere with astronomical observations.

With over 8,000 low Earth orbit (LEO) satellites currently orbiting Earth and projections indicating a potential increase to 60,000 by 2030, solutions are needed to mitigate the impact on stargazing activities.

To address this challenge, satellite operators have started exploring mitigation strategies, including dark coatings and adjustments to satellite positioning. However, these efforts have not completely resolved the issue of ground-based observation disruption.

Surrey NanoSystems, known for its expertise in ultra-black technologies, has introduced Vantablack 310 as a manageable, customer-applied coating that can withstand the harsh LEO environment.

The technology will undergo testing during the Jovian 1 mission, set to launch in 2026. This mission, part of JUPITER – the Joint Universities Programme for In-Orbit Training, Education and Research, will coat one side of a CubeSat with Vantablack 310, marking the UK's first initiative to explore solutions for reducing satellite brightness.

The project aims to enhance space sustainability and showcase the effectiveness of Vantablack 310 as a solution for darkening satellite hulls.

Dr. Keiran Clifford, Senior Technologist and project lead at Surrey Nanosystems, expressed, "Our latest coating technology, Vantablack 310, offers exceptional light absorption performance from various angles while being resilient in the challenging LEO environment. We are excited to collaborate with the University of Surrey to drive innovation in the satellite industry, ensuring equitable access to a dark night sky for all."

Researchers from the University of Surrey are also working on methods to assess the experiment's impact from Earth.