2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/112407John N. Bahcall championed solar neutrino physics for many years. Thanks to his pioneering and long-lasting contributions, this field of research has not only reached maturity, but has also opened a new window on physics beyond the standard electroweak model through the phenomenon of neutrino flavor oscillations. We briefly outline some recent accomplishments in the field, and also discuss a couple of issues that do not seem to fit in the ``standard picture,'' namely, the chemical controversy at the solar surface, and possible implications of recent gallium radioactive source experiments.12 pages, inclusing 9 figures. Presented by G.L. Fogli at 3rd International Workshop on NO-VE: Neutrino Oscillations in Venice: 50 Years after the Neutrino Experimental Discovery, Venice, Italy, 7-10 Feb 2006High Energy Physics - PhenomenologyAstrophysicsHigh Energy Physics - ExperimentNuclear Experimenttext