Space Habitat Printer Now Building Better Earth Buildings

A Tennessee company that helped NASA figure out how to build homes on the Moon is now transforming how we construct buildings right here on Earth.

Branch Technology of Chattanooga won a major NASA challenge in 2017 to design printed habitats for deep space exploration. Working on that project led them to invent something remarkable: a way to 3D print building materials that are just as strong but use a fraction of the material.

"Our process eliminates a ton of material from something that otherwise might be printed solid all the way through," said David Goodloe, who leads Branch Technology's Advanced Concepts team. Instead of printing solid layers like traditional 3D printers, Branch developed Freeform 3D Printing, which creates lightweight lattice structures that can be filled or covered as needed.

The company now manufactures wall panels and building cladding that are both visually striking and incredibly efficient. Think of it like building with a strong honeycomb pattern instead of a solid block.

NASA's original challenge asked teams to think about building structures on Mars using materials found on the planet's surface, like dust and rocks. Branch responded by developing basalt fiber-reinforced plastic and learning exactly how to mix their printing materials for maximum strength.

Those innovations for space led to better "inks" for Earth construction. The company also evolved their printing nozzles to create both lattice structures and traditional solid sections in the same panel, giving builders flexibility to attach fasteners where needed.

The Ripple Effect

This technology represents more than just a cooler way to make walls. By dramatically reducing material waste while maintaining structural integrity, Branch is addressing one of construction's biggest environmental challenges.

The partnership between Branch and NASA exemplifies how solving problems for space exploration creates unexpected benefits back home. Tracie Prater, a technical manager at NASA's Marshall Space Flight Center who worked with Branch, notes the company helped answer a crucial question: once you build a habitat on another planet, how do you efficiently furnish and outfit it?

That same question applies to sustainable building on Earth, where reducing material waste without sacrificing quality has become increasingly urgent. Branch's lattice structures offer architects and builders new creative possibilities while using resources more responsibly.

For 50 years, NASA's Technology Transfer program has documented how space innovations improve daily life on our home planet. This printing breakthrough joins a long line of technologies that reached for the stars and landed in our homes.