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NASA spends about 10 bil a year on average. In 2011, the budget on space represented only 0.5% of the US’s federal budget (18.4 billion / 3.4 trillion). Relatively speaking, space exploration has a very small budget and the amount of discoveries and helpful tools we have made indirectly are amazing. Will we ever reach the next star? Find species on other planets?.. Maybe, maybe not, but along the journey NASA has invented (Or helped invent) many every day items. Water filters, ear thermometers, improved long distance communication, and the list goes on.