Sun’s Composition
Our entire solar system was formed by a huge swirling cloud of gas called a nebula. Out of the total content of the gases, 99.8% of it went into making the sun. The other 0.2% created the planets, meteors and asteroids in our solar system. Nearly two thirds of the sun is made up of hydrogen, while helium accounts for 24%. The other one percent is made up of oxygen, carbon, iron, neon and other heavy elements.