Turning The Red Planet Green
Very Interesting|January /February 2021
If humans are to stand a chance of successfully setting up a colony on Mars, we’re going to need to figure out a way of producing food on the planet
James Romero
Turning The Red Planet Green

Four years ago, in 2016, Wieger Wamelink, a plant ecologist based at Wageningen University, sat down at the New World Hotel in the Netherlands with 50 guests for a one-of-a-kind meal. Things might have looked ordinary enough from a quick glance at the menu, if maybe a little cheffy – pea purée appetisers to start, followed by potato and nettle soup with rye bread and radish foam, then carrot sorbet to finish. But the thing that made it such an extraordinary occasion was that all the vegetables used to make the meal had been grown in simulation Martian and lunar soils by Wamelink and his team. Since then, they have grown an impressive 10 crops, including quinoa, cress, rocket and tomatoes, using simulation soils produced using crushed volcanic rocks collected here on Earth. The team produced their simulant soil by grading the particles of rock into different sizes, and mixing them in proportions that match rover analyses of the Martian soil. The soils were initially developed so that rovers and spacesuits could be tested on Earth to see how well they handled the surface materials of Mars and the moon.

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