The Nobel Prize in Physics has been awarded to Takaaki Kajita and Arthur McDonald for their work on neutrino oscillations, which show neutrinos have mass. BREAKING NEWS The 2015 #NobelPrize in Physics to Takaaki Kajita @UTokyo_news_en and Arthur B. McDonald @queensu pic.twitter.com/ipvzm0EEFN — The Nobel Prize (@NobelPrize) October 6, 2015