Question

Does any Star (Including Sun) have Iron?

Answer 1

While our Sun is the most studied star, scientists suggest other stars also have iron in their composition.

Explanation:

The Sun contains iron in the amount of `0.030%` of its total atoms, or 0.014% of its total mass.

This may not sound like much iron, but compared to the mass of earth, there is a substantial amount. You would need `109` earth's in a line to cover the Sun's diameter and about `1` million earth's to fill a sphere the size of the Sun, depending on how you fill it.

There is information on the composition of the Sun here:
https://www.space.com/17170-what-is-the-sun-made-of.html

And updated information on how the Sun produces energy is here:
https://www.space.com/26959-solar-neutrinos-sun-fusion-detection.html