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Is Europa colder or hotter than Earth?
Question Date: 2012-11-30
Answer 1:

Europa is colder than Earth. Europa's average surface temperature ranges from about -260 degrees F (-160 degrees C) at the equator to about -370 degrees F (-220 degrees C) at the poles. This, of course, would be much too cold for humans to tolerate.

Despite these cold temperatures, however, some scientists believe that a layer of liquid water exists beneath Europa's icy crust. Such a subsurface ocean would, of course, mean that the temperature beneath the crust would have to be much warmer, warm enough for water to exist as a liquid.

Answer 2:

Europa is much colder than the Earth. It's at four times the distance from the sun, and so gets one sixteenth the energy.

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