fun fact: the coldest place in the universe is, in all likelihood, on earth
this is not just a joke about cold weather; the coldest anywhere else in the universe ever gets is approximately 3 K, because that's the temperature of the cosmic microwave background radiation
meanwhile on earth, laboratories studying Quantum routinely chill things to very low temperatures with cryocoolers, some of which get to fractions of a millikelvin
-F