Invasive Species, Biological Control, Where do Potatoes come from? Yours truly has a preference for spuds over rice as the dietary “carb.” So, you may forgive me for being interested in news about this tuber-kind being potentially feeding the future colonists on planet Mars. Surely now, our venerable Canadian Broadcasting Service (CBC) would not lie! As the report says “The [potato growing] experiment was conducted in soil in the Atacama Desert in Peru, which is most similar to what is found on Mars.”