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NASA could build a future lunar base from 3D-printed moon-dust bricks
NASA hopes to take us back to the moon for an extended stay via its Artemis lunar program, but lots of logistics still need to be worked out before we can safely set up on the moon for the long haul. One such hurdle is the actual material astronauts will use to construct a permanent lunar base, which will require a host of engineering considerations we normally never need to think about down here on Earth. According to an announcement earlier this week via the University of Central Florida, a team from the school’s Department of Mechanical and Aerospace Engineering developed a new construction material composed partly of lunar regolith—the loose rocks, dust, and other debris covering the Moon’s surface. Using both 3D printing and a method called binder jet technology (BJT) in which a liquid binding agent (in this case saltwater) is infused into a bed of moon powder supplied by UCF’s Exolith Lab, Associate Professor Ranajay Ghosh’s group was able to produce bricks capable of withstanding pressure of up to 250 million times greater than our own atmosphere. Although the initial cylindrical bricks produced are comparably weak, blasting them with 1200 degrees Celsius heat strengthened them enough to be a viable tool in the eventual structures NASA hopes to establish on the Moon, such as a modular cabin and mobile home. “This research contributes to the ongoing debate in space exploration community on finding the balance between in-situ extraterrestrial resource utilization versus material transported from Earth,” Ghosh said in UCF’s announcement.
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