<\/p>\n
Autonomy will be there right from the start. NASA\u2019s new version of the moon buggy, its Lunar Terrain Vehicle, can be driven by the astronauts riding in it but can also be piloted remotely from Earth (or from elsewhere on the moon). There are visions, too, of adding modular robotic arms, towing vehicles, and cargo movers\u2014all still in the preliminary stages of planning.<\/p>\n
Over the next few decades, though, we\u2019ll likely want an army of robots to do our bidding: excavators to dig up lunar rocks that could be turned into concrete and bricks, plus other robots to flatten surfaces, dig trenches, create building foundations, pave landing pads, and build up dust-deflecting berms to keep the base from being sandblasted by launches and landings. Even solar panels and wiring can potentially be made from moon rocks\u2014something that the spaceflight company Blue Origin demonstrated in labs on Earth in 2023 using a geologic simulant designed to match the composition of lunar regolith.\u00a0<\/p>\n
Powering this robot army will require considerable energy. Two-week-long nights make solar power an impractical solution. Aside from a cornucopia of high-\u00adcapacity, extreme-temperature-resistant batteries, nuclear power is probably the only viable option. A small, car-size nuclear reactor, filled with an almost literal handful of uranium, could power a small village for a decade without needing to be refueled. And although nobody\u2019s yet tested a nuclear reactor on the moon, few doubt that NASA and the US Department of Energy can conjure up a working design\u2014one that perhaps wouldn\u2019t be too different from those aboard nuclear submarines. A moon base in 2100 would probably feature multiple small, autonomously or remotely operated nuclear reactors, which\u2014conveniently\u2014the base-expanding robots could simply plug themselves into to recharge.\u00a0<\/p>\n
But the biggest lunar question mark might be water, which planners want to support the astronauts\u2014and to make fuel to launch things from the lunar surface. A process known as electrolysis, which uses electricity to snap apart molecular bonds, can be used to split water into oxygen and hydrogen, both of which could be used to make rocket fuel. Getting them this way could be far less expensive than sending either all the way from Earth. And as an added bonus, it would provide a source of breathable oxygen.\u00a0<\/p>\n
Orbital data has revealed that there is some amount of water preserved in patches on the lunar south pole, but little is known about how much there actually is, what form it takes, or how easy it will be to extract. Will there be solid sheets of ice here and there, ready for us to excavate? Or will there be scattered ice crystals intermingled among the rocky grains, requiring some more inventive form of extraction?<\/p>\n
A lot of the moon\u2019s water is thought to be hiding in deep, dark craters on the south pole, where the environment is so extreme that robots may freeze up, tumble over, or lose contact with the base. \u201cTo me, that is the biggest hurdle,\u201d says Paul van Susante, principal investigator of the Planetary Surface Technology Development Lab at Michigan Technological University.<\/p>\n
Van Susante\u2019s lab has been putting various construction robots through their paces in moon-like vacuum chambers filled with moon-like rocks. His team was part of NASA\u2019s recent Break the Ice challenge, which invited engineers to build robots to test different ways to excavate such rocks. Some teams used an electric jackhammer and a scoop, while others used scrapers to peel off layers of the ground. The teams simulated the moon\u2019s weak gravity using a crane to lift and offset the weight of the robots. Progress in this regard is speeding along. \u201cI won\u2019t say that\u2019s solved, but we\u2019ve got a lot of the puzzle pieces,\u201d says van Susante.<\/p>\n<\/p><\/div>\n
#Mars #hellhole #moon<\/p>\n","protected":false},"excerpt":{"rendered":"
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