The Coldest Possible Temperature: __ Zero
This page is the CodyCross answer for the clue below from Space Exploration, Group 908, Puzzle 5 (Beamed Propulsion).
Question is: The Coldest Possible Temperature: __ Zero
and the answer is: ABSOLUTE
Word Meaning:
ABSOLUTE — Free of restrictions, limitations, qualifications or conditions; unconditional.
Definitions from Wiktionary.