Batman #156
Batman undergoes a test simulation for a situation that astronauts may one day face alone in outer space, and during that simulation he sees Robin die. After the test is over, Batman faces the terrible side-effects of his simulation, believing that Robin will actually die, and it so complicates his fight against crime, he decides to retire!
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Batman undergoes a test simulation for a situation that astronauts may one day face alone in outer space, and during that simulation he sees Robin die. After the test is over, Batman faces the terrible side-effects of his simulation, believing that Robin will actually die, and it so complicates his fight against crime, he decides to retire!
Plot details indexed by the Grand Comics Database (CC BY-SA).