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Considering it is such a small percentage of the budget and they have developed so much useful technology (https://www.howtogeek.com/831363/these-nasa-innovations-are-all-around-us-everyday/)
I would say, take the money from other things that suck, like handouts to the rich and wasteful military overspending which would easily cover the things we need to cover. Defunding NASA would contribute to the dummification of the country and is a terrible idea.
Currently, but during many of the innovations it was a much higher percentage. And why do you assume there wouldn’t be other, maybe more impactful innovations, if NASA money and NASA researchers weren’t working on something else?