We still need NASA.
With the new federal budget finally increasing NASA's funding I think its time to talk about some of the great things NASA has done and still does. NASA created the basis for many important products that we use today including memory foam, scratch resistant lenses, and water purification systems. Some people consider NASA to be unnecessary because of the advent of space entrepreneurship with companies like SpaceX sending shuttles to the ISS and putting satellites into orbit. However NASA is still relevant because they push the boundaries of what is possible, which currently means sending people beyond a low orbit to the moon and Mars. NASA will always be relevant because they are able to plan further into the future than any business is capable of doing. Currently they are working on the Space Launch System which will be the most powerful rocket in existence and are planning a manned Mars mission in the 2030s.
To learn about some of the products that were created based on NASA science check out this site http://www.nasa.gov/externalflash/nasacity/index2.htm
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