Of all the known particles in the Standard Model (excluding the recently-discovered Higgs boson), neutrinos are the least well understood. Almost massless, and so reluctant to interact with other particles that they can travel right through the Earth without even noticing, neutrinos are among the most difficult particles to study in experiments. Yet they are crucial to the world as we know it: the nuclear reactions that make the Sun shine and create most of the elements of the Periodic Tableinvolve neutrinos, and they may even explain why our universe is made of matter and not antimatter.
Find out more about these mysterious and elusive particles with our guide to neutrinos: the Neutrino FAQ, for those who are new to the subject, and our detailed guide for the more knowledgeable and/or adventurous.
