Thanks to its extraordinary radiopurity, Borexino observed the two main fusion reactions in stars and will soon weigh in on a controversy relating to the birth of the Sun that challenges the SSM (G.Bellini & A.Ianni on CERN Courier)
Borexino Results on Neutrinos from the Sun and Earth S. Kumaran, L. Ludhova, Ö. Penek, G. Settanta Universe 2021, 7(7), 231 – Published: 6 July 2021 (This article belongs to the Special Issue: Italian Research Facilities for Fundamental Physics) doi: 10.3390/universe7070231
Borexino revealed for the first time the mechanisms powering the Sun and the other stars. In this article Prof. em. Gianpaolo Bellini describes the experiment and recollects its history and achievements (Il Nuovo Saggiatore Vol. 36, Anno 2020, No. 5-6, Pag. 82).
Summary of Borexino results: solar neutrino rates from pp, 7Be, pep, 8B, CNO, day/night asymmetry, seasonal variation, neutrino oscillation.