Talk:Sun/@comment-94.171.39.238-20111114144936

Shut up. The sun and other stars are fueled by a gas called Hydrogen which explodes and causes nuclear reactions inside its core, which causes to radiate through the layers and give out light. When there is no hydrogen inside a star, it swells up into a red giant, or a supergiant, and explodes in a planetary nebula or a supernova, but that will happen in a few billion years.