Revolutionizing Space Travel with Next‑Generation 3D‑Printed Materials

Material science is rapidly evolving in additive manufacturing, driven by targeted research into niche applications and growing industrial adoption. Earlier this week we spoke with Dr Bastian Rapp of NeptunLab, who explained how his team is engineering proprietary 3D‑printing resins tailored to their research needs. In parallel, Dr Richard Buswell from the University of Loughborough highlighted ongoing efforts to create a 3‑D‑printable concrete that could revolutionize construction.

These conversations illustrate a shift in the industry narrative: instead of retrofitting existing polymers into unsuitable roles, designers are identifying problems where additive manufacturing offers unique advantages. This mindset fuels breakthroughs in both material chemistry and printer hardware, turning visionary concepts into practical solutions.

One notable milestone came in July when Made In Space introduced a new vacuum‑resistant polymer—polyetherimide/polycarbonate (PEI/PC)—specifically engineered for 3‑D printing in space. The International Space Station (ISS) has relied on an onboard stereolithography printer since 2015, producing tools on demand to reduce payload weight and free up storage. However, conventional resins such as ABS and PE degrade under the extreme ultraviolet (UV) radiation and atomic oxygen that dominate the station’s exterior environment, limiting printed parts to internal use.

By developing PEI/PC, Made In Space has unlocked the ability to print functional tools and replacement parts that can survive the harsh vacuum outside the ISS. The material’s superior strength, UV resistance, and tolerance to atomic oxygen make it an ideal candidate for exterior applications, ensuring that astronauts can fabricate necessary components in situ.

Looking ahead, the company plans to deploy the Archinaut—an autonomous 3‑D printer designed to operate in vacuum—by 2018. This platform would enable the ISS crew to produce small satellites directly aboard the station, a breakthrough that could democratize satellite deployment for universities and research institutes by dramatically cutting launch costs.

Parallel initiatives, such as the Modular Analog Research Station (M.A.R.S.) project, reinforce the idea that additive manufacturing will be integral to future deep‑space missions. These projects demonstrate that 3‑D printing can provide rapid, on‑site fabrication of complex structures, reducing the need for bulky, pre‑manufactured hardware.

Beyond space, the ripple effects of these material innovations are already evident on Earth. As new polymers prove their worth in high‑profile aerospace missions, manufacturers gain confidence to experiment with them in demanding terrestrial environments—high‑temperature power plants, chemical processing plants, or even hostile industrial sites.

Ultimately, the evolving conversation around 3‑D printing—from a perceived competitor to a complementary technology—highlights its growing maturity and versatility. Continued investment in material science, coupled with advanced printer designs, promises a future where additive manufacturing seamlessly integrates into diverse production workflows.