The Large Hadron Collider has been used to detect every known particle except neutrinos. Until now

Neutrinos are some of the most enigmatic particles in all of physics. Sporting a neutral charge and a mass close to zero, neutrinos rarely interact with other matter and as such have been notoriously difficult to observe. Scientists have still learned a great deal about them — including identifying three neutrino types (electron, muon and tau particles) — but observing them has been quite another matter....

Originally posted on salon.com