But I was afraid of governments launching
gigaton nuclear
weapons on spacecraft, as was a Russian colleague who had participated in the Soviet
weapons program and had some wonderful stories about nuclear tests that went wrong.
«Following the 1994 Shoemaker - Levy 9 comet impacts with Jupiter, Edward Teller proposed to a collective of U.S. and Russian ex-Cold War
weapons designers in a 1995 planetary defense workshop meeting at Lawrence Livermore National Laboratory (LLNL), that they collaborate to design a 1
gigaton nuclear explosive device, which would be equivalent to the kinetic energy of a 1 km diameter asteroid.