"One Moment of Humanity" is the third episode of the second series of Space: 1999 (and the twenty-seventh overall episode of the programme). The screenplay was written by Tony Barwick; the director was Charles Crichton. The original title was "One Second of Humanity". The final shooting script is dated 12 February 1976. Live-action filming took place Thursday 4 March 1976 through Wednesday 17 March 1976.