Ettore Majorana Ettore Majorana Italian: [ˈɛttore majoˈraːna]; born 5 August 1906 and disappeared 1938) was an Italian theoretical physicist who worked on neutrino masses. Majorana was a supporter of Italian Fascism and a member of the National Fascist Party. On 25 March 1938, he disappeared under mysterious circumstances after purchasing a ticket to travel by ship from Naples to Palermo.