NAPLES: As space agencies prepare to return humans to the Moon, top engineers are racing to design a tunnel boring machine capable of digging ...
NAPLES: As space agencies prepare to return humans to the Moon, top engineers are racing to design a tunnel boring machine capable of digging underground colonies for the first lunar inhabitants.
But the harsh conditions on the surface of the Moon mean that, once up there, humans need to be shielded from radiation and freezing temperatures in structures which maintain atmospheric pressure in a vacuum."Imagine something the size of my fist as a piece of rock coming at 10-12km per second, it can hit anything and would immediately destroy it," Rostami said at the meeting in southern Italy.
Analysis of images of the lunar surface show lava tubes capable of housing large cities underground, said Rostami, director of the Earth Mechanics Institute at the US Colorado School of Mines.But getting something as vast as a tunnel boring machine up there will be no easy task. The machines also have to become fully automated and repairs reduced to a minimum, a particular challenge when dealing with tools that see a lot of wear and tear as they eat through rock and dirt.With a four-metre diameter machine needing some 2,000 kilowatts of energy, experts are debating whether it is possible to use small nuclear power plants to fuel a lunar version, he said.
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