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Space is very, very cold. The baseline temperature of outer space is 2.7 kelvins — minus 454.81 degrees Fahrenheit, or minus 270.45 degrees Celsius — meaning it is barely above absolute zero, the point at which molecular motion stops. 

But this temperature is not constant throughout the solar system. So-called “empty” space — though it is not actually empty — is far colder than planets, moons or asteroids, for example, because there is (practically) nothing to absorb the energy coming from the sun.

So, not including regular “empty” space, what is the coldest place in the solar system? And how does it compare with temperatures on Earth? 

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