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Diatomic Sulfur, S2, is present in the atmospheres of Jupiter and its moon, Io. It is very difficult to obtain an S2 spectrum in the laboratory; when heated, elemental sulfur forms many different gaseous species including S2, S3, and S4. We use a two-temperature furnace and absorption cell to create conditions of high temperature and low pressure, which favor pure S2 formation. Using high resolution measurements from the National Institute of Standards and Technology in Gaithersburg, Maryland, we quantified oscillator strengths for atmospheric modeling purposes. This work is generously supported by the Jerome A. Schiff Fellowship.