Nuclear Fission: splitting up of big atomic nuclei (usually Uranium235, Plutonium239)
1) absorbs neutron
2) splits into 2 small nuclei, 2/3 neutrons and ENERGY is released
3) starts the chain reaction
Nuclear Fusion: joining of small atomic nuclei
1) two light nuclei (hydrogen) join to produce a larger nucleus (helium)
2) releases LOTS MORE energy than fission (trying to generate worlds electricity)
3) doesnt leave behind radioactive waste
Life cycle of a star
Protostar > Main sequence star > Red giant > White dwarf (then black dwarf)
> Red super giant > Supernova > Neutron star > Black hole
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