Neutrinos

Yes, Neutrino is a massive particle and this is physics beyond that the standard model particles, we know that have mass for experiments and the oscillation between flavors

Neutrino have a poor interactition and the reason is your neutrality and this means that they can pass through without effect in us

Even that neutrino is a neutral particle, can have

Electric dipolar moment

Anapolar moment

Anomalous magnetic moment

Radious charge

Neutrinos are lepton particles, like electron, and they are elemental particles

Neutrinos are presente in all the universe

Exist four types of force in the universe, Neutrino obey the weak force

This is a question to resolve in this century and make a great difference