World innovation: 3D printing for the colonization of the Moon and Mars!

World innovation: 3D printing for the colonization of the Moon and Mars!

In a remarkable advance for space research, scientists at Leibniz University Hannover and Otto von Guericke University Magdeburg have developed innovative methods for producing metal parts in weightlessness. This pioneering work aims to promote the colonization of the Moon and Mars by developing manufacturing methods for on-site use. According to [uni-hannover.de], it is crucial to produce goods for everyday needs using available resources.

One of the biggest challenges scientists face is how to efficiently produce and repair metal parts in microgravity. To solve these problems, the researchers are using a combination of 3D printing and laser deposition welding, which deposits metal powder in layers onto a substrate. This method could not only allow worn components to be repaired during space missions, but also reduce the need for expensive replacement parts.

Research approaches and techniques

As part of their studies, the researchers have developed a system that makes it possible to simulate the conditions of a space mission using the Einstein Elevator at the Hannover Institute of Technology (HITec). This facility is unique because it can mimic various gravity conditions from microgravity to rocket launch. The experimental setup includes a gondola adapted to microgravity conditions, including a powder feeder and a laser system.

The materials used in this project are particularly titanium and nickel alloys, which are widely used in aerospace. The next step in this research is the processing of lunar regolith as a starting material, which will be done in cooperation with the Laser Center Hannover (LZH). This could be the crucial step to facilitate manufacturing on the Moon or Mars.

Expanded perspectives in 3D printing

In parallel to the developments in Germany, NASA has been working on further advances in the field of 3D printing together with the European Space Agency (ESA) and the German Aerospace Center (DLR). On July 8, 2025, ESA launched the STARGATE project to evaluate additive manufacturing technologies for use in space. The focus of the project is 3D printing a functional metal component on board the International Space Station (ISS), as [3druck.com] reports.

A particular focus is on the production of a 1-Newton engine, which will be developed in orbit and returned to Earth. These tests are intended to clarify how microgravity affects the printing process and material properties in order to enable the long-term on-site production of critical spare parts. The challenge is to precisely control the melting process in zero gravity, which is crucial for the structural integrity of the parts produced.

Along with these developments, Dr. Gilles Bailet from the University of Glasgow created prototypes for a solution to 3D printing problems in weightlessness. This technology has been tested in experimental flights and could revolutionize production in space factories by using special granular materials instead of traditional filaments. However, challenges remain, particularly the reliability of executing technologies developed on Earth in space, as [3dnatives.com] notes.

The possibilities opened up by these research projects could not only significantly influence progress in space travel, but also advance additive manufacturing on Earth. The knowledge gained from these experiments could therefore be of great importance for future space missions as well as for industry on Earth.