Pretty sure He heard it. I doubt he heard fictional theories. Besides, sound doesn't travel in space.
Anything 'blowing up' would not form planets, no matter how many billions of years you give it. All those little particles would be drawn to the sun. tiny particles all moving at different rates would never gather together and form planets. they would just bounce off each other. The laws of gravity apply, and the laws of gravity in the presence of a large body such as the sun apply as well.
You are just going to have to accept the fact that God created the universe and everything in it.
Nothing can't explode and make something. Nor can a random explosion achieve perfect balance. It's beyond impossible billions of times over.
God told you how and why he created the universe. He created it using his own energy, converting it to matter and spread it out. He created it for a single purpose, to create us.
Seems that when the core collapses and material falls in, it compresses enough to carry sound, albeit on a vast scale.
Sound travels through that material. Then, when the infalling material is then blasted out into space by reactions at the core, it eventually reaches a point where it is not dense enough to carry sound waves.
Uhhh, you did understand that stars carry sound. Right?