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Originally posted by JiggyPotamus
Well a planet like Mars has an atmosphere. In the vacuum of space there will be no condensation, because there is no oxygen or water vapor, or anything else. All condensation is really is the changing of a gas into a liquid. Different elements will differ in when or if they condense. I do not know much about Mars, but I know the possibility is there for condensation, and is not there for space.
Originally posted by chr0naut
reply to post by amraks
Liquid water, in space, tends to 'boil away' as there is insufficient atmospheric pressure for it to remain liquid.
This boiling has nothing to do with heat, the water stays at roughly the same temperature it was before boiling.
Water in space is usually in the form of ice because it doesn't last long once liquid.
When water ice in comets is melted by the Sun, it so quickly disperses into space that there is no sign of it going through a liquid phase. In NASA speak, it sublimates into a gas, which appears as the tail of the comet.
Note that this is not water vapor (which is tiny droplets of liquid water) like a cloud, but is literally a molecular gas.
Originally posted by SoymilkAlaska
Originally posted by chr0naut
reply to post by amraks
Liquid water, in space, tends to 'boil away' as there is insufficient atmospheric pressure for it to remain liquid.
This boiling has nothing to do with heat, the water stays at roughly the same temperature it was before boiling.
Water in space is usually in the form of ice because it doesn't last long once liquid.
When water ice in comets is melted by the Sun, it so quickly disperses into space that there is no sign of it going through a liquid phase. In NASA speak, it sublimates into a gas, which appears as the tail of the comet.
Note that this is not water vapor (which is tiny droplets of liquid water) like a cloud, but is literally a molecular gas.
i think that if there is a space ship all derelict and abandoned out in space for a REALLY long time, and the space ship is REALLY cold on the outside, maybe even colder than the "space" around it....
that it could technically "ice up" like the windows on a car.
i might not all be water ice though.