Originally posted by Nevan
You do realize that such heat only lasts an insignificant fraction of a second, right?And that a Star has significantly higher mass, so even if the temperature is lower, the total heat is higher.
And that Superman was turned into what may as well be a mummy.
Haven't posted on this site in a long time. Might be a little late to the party, but in an interview Snyder mentioned that the BvS nuke scene was taken from "The Dark Knight Returns" in which Superman's body was dried out due to the radiation after being hit by a nuke. Considering that prior the fight he was still under the effects of the kryptonite poisoning (hence his cheek cut) his body desperately grasped for the most available source of radiation (since kryptonian cells absorb radiation) In an earlier scene it was revealed what happens to kryptonian cells under a microscope when exposed to kryptonite. The mineral immediately drives the solar radiation from the body, and degrades the cells. In addition since kryptonian cells act like sponges, they take in the green kryptonite radiation.
Main concerns of a nuke:
Blast wave
Heat
Radiation
In regards to Supes main problem
Couldn't be the blast wave (body still in tact)
Couldn't be the heat. For one his skin has no visible burns, and his suit is fine
Therefore, it has to be the radiation. Solar reserves are depleted so the body absorbed the radiation from the most available source (nuke) since the sun was blocked out thus poising him almost like a cancer.
Hence why his body appeared mummified.
When he returns to full strength his scar is healed
So with that being said, I don't think the heat was the problem at all.