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I too work at NASA Ames. Over ten years ago there was an
experiment running, I think it was called the Closed Environment Life
Support System. It used pretend gray water and fed a fantastic
hydroponic garden there were bags of fresh greens, lettuce, basil
etc. after every weekly harvest. Light, temperature and nutrient
cycling were strictly controlled. We hated it when the study was over.
My kids, now adults, still talk about my Space Pesto.