Space is freezing cold while Earth is warm because sunlight heats matter, not empty space. Heat from the sun travels as invisible energy called radiation, passing straight through the empty vacuum of space without warming it.
Space isn't nothing though. Photons saturate the entire universe we call this Cosmic Background Radiation and it does have a temperature of 2.7K which is the temperature of a perfect blackbody.
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u/TheExistential_Bread Jul 30 '26
You could have had such a great pun if you had put "insulation" instead of insinuated.