Astronauts Could Use Their Own Pee To Build A Moon Base

Space agencies from around the world hope to colonize the moon one day. But building a moon base is expensive work: Bringing just one pound of payload from Earth into orbit costs an estimated $10,000.

This high cost of transport means that researchers are seeking alternative building material to construct a lunar settlement, including raw materials found on the moon or ones generated by the astronauts themselves, like their pee, for instance.

Full Story @Smithsonian