With the possibility of having an Earth-independent colony on Mars by 2030, one very important question needs to be answered, what does one eat on Mars?

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Edible space foods are, by necessity, long-lasting and shelf-stable, because missions can last for months. By using preservation techniques like freeze-drying and thermostabilization, astronauts can enjoy items like Kimchi and ice cream.

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Many food staples will eventually make their way to Mars but they will have to be engineered to endure an even longer shelf life than in the past.

The challenge they are facing is creating food that will literally last for years without losing too much of its nutritional value.

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