What is the sphere of solid material at the sun's center?

Answer 1

The sphere of solid material at the Sun's center is primarily composed of iron and nickel, along with other heavy elements. This dense core is thought to exist due to the extreme pressures and temperatures that cause atoms to be in a solid state despite the high-energy environment typical of the Sun. However, it is essential to note that the Sun is mostly in a plasma state, and the core is predominantly a region of nuclear fusion rather than a solid object like a planet's core. The exact nature and structure of the Sun's core are still subjects of ongoing research.