Electronics from moon dust: how lunar regolith could become a raw material for printed circuits
Humanity’s return to the Moon is no longer just a matter of a single spectacular landing, but of long-term presence and everyday survival in an environment that is extremely hostile. That is precisely why increasing attention is being given to technologies that would allow future crews to avoid bringing part of their equipment, spare parts and basic functional systems from Earth, and instead produce them where they are needed. In that context, the idea is being considered ever more seriously that lunar regolith, the layer of crushed rock and dust covering the Moon’s surface, should be viewed not only as a geological material, but also as a potential industrial base for building infrastructure beyond Earth.
A new initiative by the European Space Agency, launched through the Discovery element and the Open Space Innovation Platform, starts precisely from that assumption. The project entitled Regolith to Repairs: ISRU for Additive Manufacturing of Electronics is led by the Danish Technological Institute, and its goal is to examine whether regolith can be processed into conductive inks and metal powders needed for the additive manufacturing of electronic components on the Moon. This is research that combines several strategic goals of future lunar missions: the use of local resources, reducing dependence on supplies from Earth, and developing technologies for repair and manufacturing on site.
Why the issue of local manufacturing is so important
Every mission to the Moon or deeper into the Solar System carries with it a strict logistical calculation. Payload mass remains one of the most expensive resources in the space industry, and every additional component that must be launched from Earth entails additional costs, more complex mission preparation and longer waiting times in the event of a failure. If astronauts on the Moon’s surface lose part of a communications system, sensor, antenna, connector or a simple electrical conductive link, a replacement part cannot arrive quickly and easily as it can under terrestrial conditions. That is exactly why the idea of obtaining material for repairs and for making simpler components from the local environment has direct operational value.
In its reviews of in-situ resource utilization technologies, that is, the use of local resources, NASA emphasizes that a sustainable presence on the Moon will not be possible if all consumables, construction material and critical systems constantly have to be brought from Earth. The European Space Agency is developing a similar approach through several research lines related to oxygen from regolith, construction materials and local manufacturing, and the new electronics project fits precisely into that broader picture. Instead of using regolith only as a raw material for building blocks or protective structures, its role is now being considered in a much more sensitive and technologically demanding field, the production of electronic elements.
From oxygen to metals: where the opportunity for a new type of manufacturing arises
The project’s foundation was not chosen by chance. ESA has been researching methods of extracting oxygen from simulated lunar soil for years, because lunar regolith contains approximately 40 to 45 percent oxygen by mass, but chemically bound within minerals. That oxygen is not available for breathing or for use in propulsion systems until it is released by an appropriate process. One of the techniques that has proved particularly important in this regard is molten salt electrolysis, a process in which regolith is immersed in a calcium chloride electrolyte heated to approximately 800 to 1000 degrees Celsius. By applying an electric voltage, oxygen is extracted from the material, and after the reaction a metal-rich residue remains.
It is precisely in that residue that the Danish Technological Institute and its partners see a new opportunity. If the metal fraction, which arises as a by-product of oxygen extraction, can be processed and turned into a functional material for the digital printing of conductive traces or for the 3D printing of larger parts, then a single technological process would simultaneously solve multiple needs of future lunar bases. Oxygen would serve life support and potentially propulsion needs, while the remaining material would become the basis for electronic conductors, conductive elements and pieces of equipment. This reduces waste, increases the usability of every processing step and creates a more closed production cycle, which is crucial in space conditions where every resource is limited.
The role of Metalysis and why simulated regolith matters
An important partner in the project is the British company Metalysis, which has already cooperated with ESA and the UK Space Agency on developing technologies for regolith reduction and oxygen extraction. ESA had earlier announced that the molten salt electrolysis method had proven suitable for extracting oxygen from simulated lunar material and that the process also yields usable metal alloys as an additional result. For the needs of the new project, Metalysis is now providing simulated regolith, both in its original form and in a form after deoxygenation, so that under controlled conditions it can be tested whether the resulting metal residue can be turned into raw material for electronics.
Simulated regolith is therefore not a detail of laboratory procedure, but a necessary step toward any serious application. Since real material from the Moon is not available in the quantities needed for development work, research relies on terrestrial simulants that mimic the mineral composition and behavior of lunar soil. Only through such testing is it possible to assess how robust the process is, how repeatable the obtained materials are and whether they can be adapted to printing and microfabrication processes. In other words, before the technology even once comes close to real use on the Moon, it must pass a series of proofs that it can produce a stable and predictable result at all.
What exactly the Danish Technological Institute is developing
According to the project description on ESA’s Activities platform and the information from the Discovery programme itself, the task of the Danish Technological Institute is not merely to show that the metallic residue exists, but to turn it into two clearly defined categories of products. The first are conductive inks suitable for printing electronic conductors and functional current paths. The second are metal powders that could be used in the additive manufacturing of larger elements, including parts such as conductive wires or antennas.
Such an approach opens the possibility that not only massive structural parts would be produced on the Moon, but also more sensitive functional equipment. In practice, this could mean repairing damaged systems on rovers, replacing parts within energy or communications networks, producing custom connectors and potentially manufacturing simpler sensor or RF elements on the surface itself. Conductive inks are particularly interesting because they enable digitally controlled manufacturing, in which material is deposited only where it is needed. In the conditions of space logistics, this means lower raw material consumption, greater adaptability and the possibility of fast local interventions when a standard spare part is not available.
Electronics as a critical point of future lunar bases
When life on the Moon is discussed, the public usually first thinks of habitation modules, life-support systems, spacesuits and vehicles. But all those systems rely on electronics: on conductive joints, electrical networks, printed or semi-printed circuits, antennas, sensors, control units and communications infrastructure. Even a relatively simple failure in an electrical connection can jeopardize the operation of a larger whole. That is precisely why the production of electronics in space is one of the segments that ESA is increasingly openly designating as a priority for future missions.
ESA advanced manufacturing electronics specialist Rita Palumbo pointed out that the farther humanity goes into space, the less it can afford to carry absolutely everything it needs from Earth. This applies especially to systems that must last longer, adapt to changing conditions and remain repairable. From that perspective, the development of conductive materials from regolith is not merely an interesting laboratory experiment, but an attempt to solve one of the key problems of long-term work beyond Earth: how to maintain technical autonomy far enough away from the home industrial base.
What the project aims to prove in the first phase
The current phase of the project is defined as a proof of feasibility. That means the goal is not immediately to produce a complex electronic device on the Moon, but to show that the basic idea is technically viable. According to the publicly available description, the partners want to produce conductive raw materials from deoxygenated simulated regolith and then, in the context of additive manufacturing, demonstrate the production of a conductive element, for example a piece of wire or an antenna-like structure. Such a demonstrator is important because it connects several steps in one chain: from regolith processing, through obtaining a useful metallic residue, to transforming it into a material that can be printed or deposited in a controlled and functional way.
If that chain succeeds in laboratory and simulated conditions, room will open for the next stages of development. Then it would no longer be only a question of whether a conductive material can be obtained, but also how reliable it is, how it behaves in a vacuum, during temperature oscillations, under radiation and in contact with lunar abrasive dust. For any future operational use, it will be necessary to prove that printed or 3D-printed elements can withstand the conditions on the Moon’s surface, where materials face extremes that are rare or nonexistent on Earth.
Artemis, ESA and the race for a sustainable presence on the Moon
The project comes at a time when the issue of a sustainable lunar presence is becoming increasingly concrete. In April 2026, NASA carried out Artemis II, the first crew that flew around the Moon as part of the Artemis programme, while future missions are conceived as steps toward landing humans on the surface again and establishing a longer-term operational presence. Official NASA materials clearly state that the long-term goal of the Artemis campaign is to establish systems and infrastructure that will enable not only short visits, but also sustainable exploration, scientific work and the development of a broader space economy.
In that architecture, local manufacturing is not a luxury, but almost a prerequisite. The longer the missions become, and the more diverse the equipment, the greater the need will be for repairs and improvised manufacturing. ESA is therefore developing in parallel several areas related to lunar resources, from oxygen extraction to construction and manufacturing processes. The project on electronics from regolith is particularly interesting because it enters the field of high added value. Unlike building blocks or passive radiation protection, here the focus is on materials that participate in the transmission of electrical energy and signals, therefore in the very nervous system of the future base.
The economic and industrial dimension beyond science itself
Although this is a project in an early phase, its significance is not only scientific. Through Discovery, ESA finances early, potentially disruptive technologies precisely because such research can create new industrial niches and accelerate the emergence of markets linked to the space economy. If it proves possible to turn a by-product obtained during oxygen extraction into a commercially relevant conductive material, that would also have consequences for the way future supply chains for lunar missions are planned.
In addition, the development of such technologies on Earth can also have broader applications in advanced manufacturing, metallurgy and printed electronics. The history of space technologies shows that solutions developed for extreme conditions often find their way into industrial processes, energy, telecommunications or defense. It is therefore not surprising that, according to the project description, manufacturers from the aerospace and defense sectors are already showing interest in such approaches. For Europe, it is additionally important because this is an attempt to strengthen its own technological capacity in an area that will probably have strategic value in the decades to come.
What remains an open question
Despite the great interest, it is necessary to keep a sense of proportion. At present, this is not a technology ready for operational use on the Moon, but a research project that still has to confirm that the basic principle is feasible at a level that makes sense for further development. It is not yet known what the conductivity of the obtained materials would be compared with standard terrestrial industrial materials, how energy-intensive the manufacturing process would be in real lunar conditions, nor how such manufacturing would fit into the broader ecosystem of a base that at the same time must provide energy, thermal stability, crew protection and robotic material handling.
The question of the level of product complexity that such materials could support at all also remains open. Producing a conductive wire, antenna or simple current path is one step, but the complete manufacture of complex electronic circuits includes much more than the conductive material alone. Dielectrics, substrates, precise deposition, connection reliability and often very strict operating tolerances are required. Because of this, it is more realistic to expect that the first practical results, if they come, would be linked to simpler conductive parts and repairs, and only later to more advanced components.
From moon dust to the infrastructure of future missions
Despite those limitations, the strength of the project lies in its logic. If it is already necessary to develop systems for extracting oxygen from regolith, and such systems have strategic value for both NASA and ESA for future missions, then it is reasonable to ask whether the residue of that process can be turned into a new resource instead of waste. It is precisely that idea of circular usability that gives the project additional weight. In space, the most efficient solution is the one that draws multiple benefits from a single operation, reduces the need for additional cargo and increases the mission’s resilience to unforeseen failures.
That is why research into electronics from moon dust goes beyond a narrow laboratory experiment and enters the broader discussion of what the real everyday life of people working beyond Earth will look like. Whether future crews will be able to manufacture and repair parts of their communications networks, sensors or energy systems themselves will depend on a series of technologies that are only now taking shape. The project led by the Danish Technological Institute shows that among them are no longer only oxygen, fuel and construction materials, but also the very basis of electronic functionality, without which there can be neither a modern space base nor long-term exploration of the Moon.
Sources:- European Space Agency / ESA Activities – official description of the Regolith to Repairs: ISRU for Additive Manufacturing of Electronics project link
- European Space Agency – overview of implemented OSIP ideas for 2025, listing the project and lead organization link
- European Space Agency – explanation of the OSIP platform and the role of the Discovery element in financing early space technologies link
- European Space Agency – presentation of the process of extracting oxygen from simulated lunar regolith and the role of molten salt electrolysis link
- European Space Agency – additional overview of research into extracting oxygen from moon dust and the share of oxygen in regolith link
- NASA – official overview of the Artemis programme and the long-term goal of a sustainable human presence on the Moon link
- NASA – official Artemis II mission page and description of the first Artemis programme crew that flew around the Moon link
- NASA – overview of the concept of in-situ resource utilization and its importance for the sustainable exploration of the Moon and deep space link
- Metalysis – overview of cooperation with ESA on the extraction of metals and oxygen from replicated lunar material link
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