__ 4; First US Spacecraft to Reach the Moon
This page is the CodyCross answer for the clue below from House of Horrors, Group 1107, Puzzle 3 (Hidden Messages).
Question is: __ 4; First US Spacecraft to Reach the Moon
and the answer is: RANGER
Word Meaning:
RANGER — One who ranges; a rover.
Definitions from Wiktionary.