Like i understand there isn’t a lot of things for the heat from Stars to bounce off of but what causes Space itself to be cold? Is it naturally always cold and if so why?
In: Planetary Science
Well it is and it isn’t. We instinctually understand cold as the sensation of when heat moves from our body to something else. In a vacuum with no sun, there’s no air to warm up or anything to insulate us, warm things in dark space will radiate away all of their energy. However in a solar system the suns energy heats things up. Without air, all that energy is directly absorbed by things in space. That is why the moon is +200°f on the sun side and -200°f on the dark side.
So it’s not that space is “cold” or “hot” it’s more that space isn’t anything. So we lose all our heat and intuitively understand it as cold.
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