PhysicsNeutrinos change their identities and we don't know why The standard model of particle physics explains many things, but the strange behaviour of neutrinos isn't one of them, writes Chanda Prescod-WeinsteinComment
HumansIf the multiverse exists, are there infinite copies of me? According to the many-worlds interpretation of quantum mechanics, the universe is constantly dividing and taking you with it – so would you recognise your other selves if you met them? Features