One century after the theory of relativity was conceived and nearly twenty five years after the tragedy of Chernobyl with its avalanche of uncertainty, doubt and discouragement, what future does nuclear energy hold for our world? With the creation of the first nuclear weapon more than six decades ago, the public´s perception of the shift in the industry to peaceful and more positive uses for humanity appears to have moved in general into a negative drive. However, given the controversial nature of nuclear power, there are hugely variable approaches in both, developed and developing worlds, Some countries like Ireland and Austria have rejected nuclear power entirely, some have existing nuclear plants but have plans to phase them aout and do not intend to build any more e.g. Sweden and Germany, and some have existing nuclear plants, intend to build more and have specific projects in hand which is hte case of France and Finland.