A team at Leibniz University Hannover has achieved a milestone: the world’s first flexible 3D printing process using metal powder under microgravity conditions. In collaboration with Otto von Guericke University Magdeburg, they adapted laser metal deposition for microgravity by melting metal powder with a laser and building up parts layer by layer, both manufacturing and repairing, all in zero gravity, says 3D Printing Industry.
The experiments ran inside the Einstein Elevator at HITec, a simulator that replicates both microgravity and high-force scenarios such as rocket launches. The entire setup, including the powder feed and laser system, was modified to function reliably in that environment. They processed titanium and nickel alloys—materials essential to aerospace structures—and proved the method worked under simulated weightlessness.
This isn’t just a lab novelty; it points toward a future where astronauts can repair tools or build components in space instead of waiting for supply shipments from Earth. The project received funding from the German Research Foundation.
Next, researchers plan to work with lunar regolith, moondust, as a raw material. If that pans out, future missions could turn local resources into structures, tools, or even habitats on the Moon or Mars.
This breakthrough brings manufacturing into the orbiting workshop, not a remote possibility, but a fast-approaching reality. It slashes dependency on Earth-based logistics and opens the door to self-sufficient space exploration.