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Old August 12th, 2004, 08:11 PM  
Anonymous
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I think the sun will run out of its main energy fuel: hydrogen. It would then find some other element to burn and turn into a red giant star as a result. The star phase that the sun is in right now is the young star phase, or probably called the yellow star phase (young star). When it runs out of fuel it turns into a red giant (older star) as I said before. When the sun does that, it gets so big that it swallos up other planets like mercury, mars, earth, and eventually venus and the other planets. Once it does that it gets so big it has a star explostion, in which the red giant looses all power and fuel and the center caves in on itself, becoming either a dead dwarf star which develops into a dead star or becoming a nebula, which can create other stars or galaxies.
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