Neutrino

'I have postulated a particle that cannot be detected,' declared the physicist Wolfgang Pauli. And it was to take many years, much patience, and great ingenuity to catch an indirect glimpse of the elusive neutrino, and win the crate of champagne Pauli wagered on the discovery. This is the story of how the most extraordinary of particles-without charge, almost without mass, passing through matter over aeons before interacting with anything at all-was sought and found, and how neutrino astronomy is now giving us views deep into the hearts of distant galaxies.