It isn’t even fire in the normal sense of fire. Usually fire is the combustion of fuels, which means it is reacting with oxygen to form water and carbon dioxide. There isn’t much oxygen in the sun, it is just hydrogen colliding with more hydrogen and fusing into helium. The helium is slightly lighter than the two hydrogens combined. This mass lost is turned into energy which we know thanks to Einstein: E=mc^2
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Kieren commented on :
It isn’t even fire in the normal sense of fire. Usually fire is the combustion of fuels, which means it is reacting with oxygen to form water and carbon dioxide. There isn’t much oxygen in the sun, it is just hydrogen colliding with more hydrogen and fusing into helium. The helium is slightly lighter than the two hydrogens combined. This mass lost is turned into energy which we know thanks to Einstein: E=mc^2