[ELI5] Would something stay hot in the space forever since there is nothing to transfer its heat?

Question

[ELI5] Would something stay hot in the space forever since there is nothing to transfer its heat?

In: 169

Answer 1

Many good explanations here, but I haven’t seen anybody mention entropy yet. Entropy is the measure of disorder, what is essentially the measure of heat. There’s an idea called the cold death of the universe, where every single thing in the universe things up at absolute zero, because if you follow the arrow of time I’ve watched the only measure seems to be entropy, the only thing that Arrow points to is maximum entropy, what is every atom that absolute zero