moon shot , n :
The launching of a spacecraft or an object to orbit or land on the Moon. (sports) An act of throwing or hitting a ball with a high trajectory. (figuratively) An expensive, hard, or unlikely task of great potential impact. On this day in 1969, the Apollo 11 spaceflight landed the first two humans on the Moon.
Source http://handbookblogger.blogspot.com/2017/07/moon-shot-word-of-day-for-july-20-2017.html
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