Compare And Contrast Nuclear Fission And Nuclear Fusion

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Nuclear fusion and nuclear fission are two very different types of nuclear reactions that result in release or absorption of energy. Nuclear fusion is the reaction in which two or more smaller/lighter nuclei are combined together under extremely high pressure and temperatures to form one heavier and bigger nucleus of a new element with a higher atomic number. A significant example of where nuclear fusion occurs is in stars. Stars are fuelled by the atomic reactions of nuclear fusion and the collisions release massive amounts of energy which make the stars so hot and shine so brightly. The sun is powered by nuclear fusion in its core and it converts 620 million metric tons of hydrogen into helium every second.
Nuclear fission is the opposite