Laser-Based 3D Printing Could Build Future Bases on the Moon

Researchers at The Ohio State University announced on March 2, 2026, that they have successfully tested a specialized laser-based 3D printing method capable of transforming synthetic lunar soil into durable building materials for future bases. Published in the journal Acta Astronautica, the study details how the team melted Lunar Highlands Simulant (LHS-1)—a material chemically identical to the dust found on the Moon—using high-powered lasers to create heat-resistant objects. This technological breakthrough aims to facilitate the establishment of sustainable, long-term habitats in the Moon’s southern polar region by enabling astronauts to use local resources, significantly reducing the need for expensive and time-consuming resupply missions from Earth. Led by Graduate Research Associate Sizhe Xu, the research team utilized a process known as laser directed energy deposition additive manufacturing to fuse layers of melted regolith onto various base surfaces, including stainless steel, glass, and ceramic. The experiments demonstrated that the material adhered particularly well to alumina-silicate ceramic, a reaction driven by the formation of crystals that enhance both mechanical strength and heat resistance. The scientists observed that the stability and quality of the printed material are heavily influenced by environmental factors such as atmospheric oxygen levels, laser power, and printing speed. By combining different feedstocks like metals and ceramics, the researchers found they could tailor the properties of the final product to withstand the harsh conditions of space, including massive temperature fluctuations and radiation. The development of this technology is crucial for major space agencies, including NASA, China, and Russia, all of which are strategizing to build bases near the permanently shadowed regions of the South Pole-Aitken Basin where water ice is present. To survive in such a resource-scarce and unforgiving environment, future lunar infrastructure must be resilient and self-sufficient. The Ohio State team suggests that while their current method relies on electricity, scaled-up versions deployed on the Moon could eventually operate on solar or hybrid power systems. Sarah Wolff, an assistant professor and lead author on the study, emphasized that maximizing the flexibility of manufacturing machines for different scenarios is essential, noting that success in creating resource-efficient systems for space has direct applications for improving sustainability on Earth.