What discoveries where made because of space travel?
by 
cleverdevil
ANSWERS: 6
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discoveries made by space travle are that there are were nine planets. that we could walk on the moon. and that you can grow plants in space.
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Millions of things... Apart from the big things like science answers about the big bang, other habitable planets etc... Improvements in dialysis technology, CAT scanners, MRI, x-ray machines, glass cockpits, many lightweight materials for airplanes, cars, and other transport. Optics, diapers, heart pumps, better golf clubs, and the list goes on. Some items are in this database: http://www.sti.nasa.gov/spinoff/database
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the planets
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that there might be life in Europa (they coulda asked me but noooo they got to go to the moon to find out... tsk tsk... I seen people all over Europe!)
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My understanding is that there have been far fewer than anticipated or as compensation for the cost of space travel.
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We discovered that people are willing to eat artificial simulations of food instead of the real stuff. For example, Tang.
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