The 2015 Nobel Prize in Physics has been awarded to the leaders of two very important neutrino experiments:
http://www.nobelprize.org/nobel_priz...aureates/2015/
Symmetry magazine has an article here:
http://www.symmetrymagazine.org/arti...o-oscillations
And the websites for the two experiments are here:
http://www.symmetrymagazine.org/arti...o-oscillations
http://www.sno.phy.queensu.ca/