Layers of the sun and what they do
The sun is an enormous ball of gas, mostly hydrogen and helium. It’s held together by its own gravity, powered from within by nuclear fusion, and contains more than 99% of the mass in our solar system. The heat from the Sun makes life on Earth possible, but it also drives our weather and produces phenomena such as auroras. Like all stars, the Sun formed from a collapsing cloud of gas called a nebula about…