I have been searching google for ages and all i find is lore about loki and thor. if gas giants slowly cool and form into ice giants what happens to ice giants? do they just exist forever or what? (prefer an answer that does not include interrupting the ice giants orbit. so no black holes no sun expansion and no rogue cosmic objects.) if everything was fine and not affecting or changing the ice giants over time what would happen to it.
In: Planetary Science
An ice giant alone with no stars or any other inputs (like MAYBE in intergalactic space) would possibly turn into a sphere of iron. But in a VERY VERY long time, due to quantum tunneling.
https://en.m.wikipedia.org/wiki/Iron_star
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