If the sun does explode in the far future, what would make it explode?

Question

If the sun does explode in the far future, what would make it explode?

In: Physics

Answer 1

The Sun is a nuclear reactor. It will run low on Hydrogen to fuse in 4-5B years. Then it will become a red giant star, and it will reach out to where the Earth is now. It won’t explode, because it’s not big enough.