As I am not a scientist take everything I say with a, well, sun-sized grain of salt.What happens if iron is introduced to a star early? Will it have an impact on it's life? Does the iron just burn up? Does it sit in the star, floating around until the star can make iron on its own? Just something I was curious about.
I guess that you would need serveral Jupiter-sized lumps of iron to make any difference in the suns fusion processes at all. Which made me think about a planet consisting solely of iron. The pressure in the center of the ball must be immense. Like earths core it would become liquid and since it's not isolating well would the whole ball of iron be liquid at some point in time? seeList of thermal conductivities - Wikipedia, the free encyclopedia. If the ball was spinning it would also be a gigantic dynamo, i cant even imagine the fields such a thing would be generating.
anyway, @brad2770, i am sure you already know about the latest supernova, but in case you missed it:Supernova in Messier 82 discovered by UCL students
and since this is a video thread, something a little like science (newtonian physics, elasticity, friction):