The letter is endorsed by the following 25 Nobel laureates in physics: Leon Neil Cooper (1972) , Brian David Josephson (1973) , Anthony Hewish (1974), Burton Richter (1976),
Arno Allan Penzias (1978), Sheldon Lee Glashow (1979), James Cronin(1980), Nicholas Bloembergen (1981), Klaus von Klitz ing (1985), Jack Steinberger (1988), Douglas D.