Earth's First Artificial Satellite, __1
This page is the CodyCross answer for the clue below from Tracking Time, Group 1047, Puzzle 1 (Fourth Dimension).
Question
Earth's First Artificial Satellite, __1
Answer
SPUTNIK
Word Meaning:
SPUTNIK — (historical) Any of a series of Soviet robotic space satellites, especially the first one in 1957.
Definitions from Wiktionary.