Then there's the unsettling possibility that when the crew gets to Mars and starts to orbit, they find they're unable to land due to dust storms or other hazardous weather. If that happens, "there is the potential that they will be required to live in a transit habitat"—the environment inside of a spacecraft where astronauts live during their journey—"for up to three years," says Michael Morris, one of the architects on the team behind the Ice House.
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