Jewish culture and many Jewish scientists had a significant role in the project. The theoretical physicist Robert Oppenheimer, often considered as the ""father of the atomic bomb"", was chosen to direct the Manhattan Project at Los Alamos National Laboratory in 1942. The physicist Leó Szilárd, that conceived the nuclear chain reaction; Edward Teller, ""the father of the hydrogen bomb"" and Stanislaw Ulam; Eugene Wigner contributed to theory of Atomic nucleus and Elementary particle; Hans Bethe whose work included Stellar nucleosynthesis and was head of the Theoretical Division at the secret Los Alamos laboratory; Richard Feynman, Niels Bohr, Victor Weisskopf and Joseph Rotblat.
Cosmic bomb (phrase) uses the phrase several times in his 1973 novel "Gravity's Rainbow", which is set roughly in the period during which the term was current. The term rapidly fell into disuse as applied to weaponry, soon yielding to "atomic bomb" (which, in turn, was eventually to yield to "nuclear weapon"). In equestrian circles, it survived for many years in the racing career of a thoroughbred named "Cosmic Bomb" and in the pedigrees of horses he sired. More recently, the term has been applied to powerful energy surges from celestial objects known as magnetars. Cosmic bomb (phrase) "Cosmic bomb" was another name