Earth is a restrictive system and each generation confronted with diverse new challenges and opportunities, which are exploited by humans that are causing various challenges for coming generations. Nuclear power is the energy emitted during nuclear transformations. The demand of world energy consumption satisfied by means of renewable energy and nuclear energy, with fossil fuels the major contributor is meeting world energy demands. Energy is most vital issue of 21st century as nuclear energy dominated for consumption, and it is causing pollutions and ozone layer depletion issues which are the major challenges for scientist.