2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/228538This paper relates the history of attempts to detect H3+ in the dense interstellar medium, from the early 1980's to the successful detection in 1996.7 pages incl. 1 figure, pdfAstrophysics of GalaxiesHistory and Philosophy of Physicstext