Cosmic ghost hunting: CNO neutrinos from the Sun detected for the first time

An international collaboration of particle physicists has announced the detection of solar neutrinos originating from the secondary fusion cycle powering the Sun. This is a world-first that could shine a light on the otherwise unseen solar core and further our understanding of stellar evolution. The Borexino Collaboration, using the eponymous Borexino detector at the Gran Sasso National Laboratory in Italy, reported its discovery in the journal Nature. More than 2000 photomultiplier tubes line the walls of the Borexino detector, shown here during construction in 2007.Credits: Paolo Lombardi/INFN-MISource: https://www.lngs.infn.it/about/photogallery?lang=en&view=form The Sun, like other stars, is powered by a series of reactions...