[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

Radiation is a thing. There are three ways to transfer heat (energy in general): through conduction (put a pot on the hot stove, soon the pot is going to be warm); convection (water heated by conduction at the bottom of the pot will rise and mix with the cold water on top, soon brining all the water to the same temperature) and radiation (you standing in the sun will soon feel warmth on your skin).