Astronaut pee could help build moon bases
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READING:
A new kind of concrete could help build things on the Moon. It is a mix of moon dust and urine from astronauts. A chemical in urine helps things stick together. Scientists could use 3D printers to make the new material. NASA and other space agencies want to build research stations on the Moon.
The new concrete could save money. It costs $10,000 to take 0.45kg of materials to the Moon. The urine and moon dust would be cheaper. A scientist said: "The actual water in the urine could be used for the mixture." Scientists say they need to do more tests to find the best building material.
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