This clue appeared in the NYT Crossword on Friday, November 21, 2025 (10 Across). The answer is hidden below until you want it. Friday puzzles are themeless and hard, with clues that are vague on purpose.
Answer length: 4 squares
First letter
M _ _ _
First and last letters
M _ _ S
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About the answer
MACS as a word: (astronomy) Abbreviation of MAssive Cluster Survey A survey for a statistically complete sample of distant (0.7>z>0.3) very X-ray luminous massive clusters o....
MACS has been an answer 7 times in the NYT Crossword and Mini since November 21, 2025.
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