was an Italian theoretical physicist who studied neutrino masses, electrically neutral subatomic particles that are created in nuclear reactions. His IQ scores range from 183 to 200 by different measures. He became a full professor of theoretical physics at the University of Naples one year before his mysterious disappearance during a boat trip from Palermo to Naples. His body was never found. The Majorana equation and Majorana fermions are named after him, and in 2006, the Majorana Prize in theoretical physics was established in his memory.