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

British Dictionary definitions for moon shot

moonshot
/ (ˈmuːnˌʃɒt) /

noun

the launching of a spacecraft, rocket, etc, to the moon