Where the Ingenuity helicopter flew (4)

I believe the answer is:

mars

(Other definitions for mars that I've seen before include "War god - chocolate bar - spoils" , "RS [RED STAR] (not technically)" , "March to the French" , "Holst's Bringer of War" , "Red planet and god of war" .)

I've seen this clue in The Wall Street Journal.

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