Sunspot: The sunspot usually means a solar flare is about to erupt from the corona of the sun,but they normally appear near sunspots. #Nuclearfusion: Nuclear fusion is a process of atoms bonding and becoming no longer reactive to other elements,the first step in nuclear fusion is that you need hydrogen or any element,but mainly hydrogen. The final step is that the H atoms must merge in order to become a helium atom,then the chain happens over and over then you have your sun. #Star #Anatomy