2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85006A brief description of the work for which the first half of the Nobel prize for physics for the year 2002 is presented.2 pages plain latex, to appear in Resonance, Journal of Science EducationPhysics EducationThe Nobel Prize in Physics 2002 for the observation of cosmic neutrinostext