Donut-shaped ice shelters could shield astronauts on Mars
The design describes a torus — a large, inflatable innertube — lined with a shell of water ice. Not only is the structure lightweight, it incorporates materials from Mars itself. In addition, the water, which protects against cosmic rays, could be repurposed as rocket fuel for the Mars Ascent Lander.The Mars Ice Home is just a concept with some drawbacks — for example, experts at Martian resource extraction say it would take 400 days to fill the shell with enough water directly from the planet. On the other hand, robots could inflate and pump the shelter while the astronauts are en route, and the water’s radiation shielding would allow the shelter to exist aboveground, obviating the need to dig deep enough to protect the shelter’s inhabitants. It’s far more theory than ironed-out solution, but the Ice Home is just the kind of fascinating concept that will prod designers and experts to innovate elegant, efficient answers to Martian exploration’s challenges.
Link: Donut-shaped ice shelters could shield astronauts on Mars
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