NASA wants to use 3D printing technology to build deep space habitats onsite instead of bringing the materials with them. Towards that end they have announced the 3D Printed Habitat Challenge, in partnership with America Makes, as part of the ongoing Centennial Challenge program.
(Score: 2) by JNCF on Wednesday May 20 2015, @03:27AM
Yup. Another approach would be mixing concrete from locally available materials. [wired.com]