[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

Think of out this way: if there is nothing to transfer the heat, then how does the Sun heat the Earth? Simple answer is that heat doesn’t need to have something to transfer through. It just floats through space like light (which is a form of energy just like heat)