[Cold Heat]

I said normal state.

High temps are required to melt. Normal state is what it is. The normal space conditions. Usually in the very cold category. Iron would be a solid and likely a dust. It cannot be compressed as a gas can and it is not known to react with anything but oxygen.

That is what I meant. Great planetary building material but not likely to start a fusion or fission reaction.

Kind of a nutty theory IMO. We know a great deal about the sun. not enough mind you, but a great deal of information has been gathered, to include much data about composition. Not theory, but data. This article flies in the face of everything we know.

[MineralMan]

"High temps are required to melt. Normal state is what it is. The normal space conditions. Usually in the very cold category. Iron would be a solid and likely a dust. It cannot be compressed as a gas can and it is not known to react with anything but oxygen. "

Silliness. Normal space conditions include the conditions in stars. Iron would melt quite nicely under those conditions and even vaporise.

Further, if it were vaporized, you could compress that gas, just as you can any other gas. Finally, Iron forms sulfides and carbonates quite naturally, since they occur right here on this planet. I'm afraid it's time for a refresher course in basic physics and chemistry.

[Fred Hayek]

You also can not get a fusion reaction from iron. Iron is the end of the line, formation of elements beyond iron (increasing atomic number) is endothermic. The hierarchy is sort of hydrogen, helium, carbon, silicon, then finally iron.