Apparently when our sun has lived out its entire life, it will pulse and fade away to a white dwarf. It will do this because it will have used up all of its fuel. That being said, since the Hydrogen Fusion is what creates sunlight with Photons, what is it that keeps the white dwarf it will be glowing? What creates the light then?
In: Physics
It’s all blackbody radiation from the enormous amount of residual heat. As the star cools, it will eventually dim and then go dark, glowing only in infrared. It really does take that long. In fact, the universe is too young to even have an black dwarfs in existence yet.
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