<font color="yellow">"How a planet from 5-10 times the size of the earth, with a surface so hot, no life could possibly survive as it'd be ionized plasma..."</font><br /><br />You seem to have difficulty understanding that the surface conditions of a planet are not the be all and tell all of that planet's geology. Just as moltem magma (or melted ice) can lie beneath a frozen surface with a temperate zone between the two extremes, a temperate sub-surface zone protected from the harsh surface environment can exist. There are many variables: is the heat of the surface due to external or internal sources? Does the surface see alternating night and day or are there permanent night and day sides? And the biggie: How much water is there below the surface? <br /><br />It is definately not as simple as looking at a planet and saying, "the surface is frozen, so there is no life" or, "the surface is seared, so there is no life." And again, for those who forget, when I say "life" I mean "MICROSCOPIC life".<br /><br />But I am not talking the possibility of life here, only the possibility of liquid water. It seems to me simple physics that there are places in our solar system where liquid water exists despite what the surface conditions tell us. <div class="Discussion_UserSignature"> </div>