In this video: Contrary to popular belief, space isn’t actually “cold” per se, at least not in the way often depicted in movies. Space is just mostly empty and all that nothing doesn’t have a temperature. For example, if you were in space without a space suit, the two ways you’d lose heat are just via evaporation of moisture on your skin, in your mouth, etc, and then much slower via radiating heat away, which would take a really long time. In fact, if you were in direct sunlight at around the Earth’s orbit distance from the Sun (1 AU), you’d find yourself overheating pretty quickly, likely with severe sunburns within a few minutes.