NASA Printing Houses on the Moon

In CACM: Once you get a 'printer' there, and have the necessary materials, it can be done.

" ... NASA envisions 3D printers serving as miniature on-site manufacturing plants creating replacement parts and tools, but the upcoming experiment is also an early test of a far grander idea. NASA and the European Space Agency (ESA) are both exploring the possibility of printing entire buildings on the Moon, or even on Mars.

Building habitats on the Moon using lunar soil as the raw material may prove less expensive than shipping ready-made structures from Earth. "You must learn to apply the local material, and the easiest approach is to use 3D printing," says Amit Bandyopadhyay, a Washington State University biomedical engineer. ... "