 The first studies of these characteristics came in 1977, which was followed by other, higher resolution spectroscopy experiments.Once several lines had been identified in the laboratory, the first interstellar detection of H3O+ was made by two groups almost simultaneously in 1986.The first, published in June 1986, reported observation of the "J" = 1 − 2 transition at in OMC-1 and Sgr B2.