3D printing will help space pioneers make homes, tools and other stuff they need to colonize the Moon and Mars
- Written by Sven Bilén, Professor of Engineering Design, Electrical Engineering and Aerospace Engineering, Penn State

Throughout history, when pioneers set out across uncharted territory to settle in distant lands, they carried with them only the essentials: tools, seeds and clothing. Anything else would have to come from their new environment.
So they...