NASA scored a bull's-eye with its latest space spectacular. From a distance of a half a billion miles, NASA guided its Juno space probe so that it went into a flawless orbit around Jupiter, only the second time in history this has been done. Some have compared this feat to trying to thread a needle that is sitting on the moon. Costing more than a billion dollars and taking five years, the Juno mission performed superbly, with the spacecraft traveling at the fastest velocity ever attained by any man-made object.


원문출처 : http://www.cnn.com/2016/07/05/opinions/juno-jupiter-kaku/index.html