moonshot

or moon shot

[ moon-shot ]
/ ˈmunˌʃɒt /

noun

the act or procedure of launching a rocket or spacecraft to the moon.

Origin of moonshot

An Americanism dating back to 1955–60; moon + shot1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for moon-shot

moonshot

/ (ˈmuːnˌʃɒt) /

noun

the launching of a spacecraft, rocket, etc, to the moon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012