But is it possible to actually grow food in Martian soil? Yes, and not just potatoes, says Bruce Bugbee, a real-life botanist and NASA scientist. In "The Martian," Watney grows his own food by ...
He grows potatoes in a mixture of Martian soil and the content of his toilet (yeuch!), something scientists have mimicked in a lab, though getting enough light for the plants to grow on Mars is ...
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