Actually my idea was to use nuclear generators to create heat and then use microorganisms to make the atmosphere breathable. I don't like the idea of using nuclear warheads because then you'll have a planet with an atmosphere, but nobody could live there because of all the radiation. I don't think it's possible to restart the core once it's a hunk of rock. Theoretically if this were to happen how would we make something to deflect solar winds, because that alone would stop us from moving there.
Thanks, so how would the heat be lost though? Because another, more crazy idea was to nuke the planet to warm it up. My idea, except for the nuclear radiation, runs on the same principles, basically creating alot of heat to free the gas particles.
no that's not it the heat would have to be given off as heat radiation (not the radioactive), because in space heat can only be transfered that way or by charged particles from the sun. After all space is the greatest insulator. If we were talking about normal situations that would be a fine explaination, but in this situation heat can't be transfered out by convection or the other kind of heat transfer that I just forgot the name too.
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