I just read that the mystery of the "missing solar Neutrinos" has been solved. That is, the "missing" stuff is converted to Muon & Tau Neutrinos (which have been detected at the SNO). I'm confused .... If Solar Neutrinos are very "non-interactive", then how do enough of them get converted into Muon & Tau Neutrinos? Could there be other kinds of Neutrinos being detected of similar "mass" that "look-like" Muon & Tau Neutrinos etc? Thanks.