User blog comment:Goku259/energytainer/@comment-4616864-20120625134218

Um, what's going on here? o.o Can I get a directory? Also, @Goku, a star's core fuses Hydrogen atoms together, which makes Helium. It requires a great amount of force to push the atoms togather, which is why stars have to be so massive because the force of gravity pulling the atoms together has to over throw the atoms nuclear forces trying to keep them apart. And then when all the Hydrogen is used up, the star starts to contract on it's self because of it's mass. (The energy put out by the fusion keeps the star from crushing it's self). When the star starts to fall back in on it's self, the force is great enough to push the Helium atoms togather. Which releases a large amount of energy (more then the hydrogen ever could) and causes the star to expand into a red giant. *Blah blah blah blah blah*