| − | The sun is a star, a giant ball of flaming gas. It provides the [[Earth]] with light and heat. In Christian theology, [[God]] created the sun on the first day of [[Creation]]. <ref>Genesis 1</ref> | + | The sun is a type G2V star. By mass, it is composed of 72% hydrogen, 26% helium and 2% trace elements of oxygen, carbon, neon, nitrogen, magnesium, iron, and silicon.<ref>[http://www.nasa.gov/worldbook/sun_worldbook.html World Book Encyclopedia @ NASA]</ref> |