Carsten Troelsgaard wrote:
| : Thermodynamics you know? Now where liquid water may exist in Mars?
| : Pure liquid water NOWHERE as the pressure is always too low for
| : condensation and the only phases that may exist there are frozen like
| : rock or gaseous.
|
| Gaseous? Exactly how? Explain using Martian pressure and temperatures how
| water vapor exists there. You are eluding to clouds here.
|
|I'll take that by vapor you mean condensed water or ice particles in the
|air, like a cloud?

Well, I am curious about that also. Can't the ice particles stick to
the dust in the area, causing a snow of sorts - even if it is rather
sparse - to fall on the ground?

|I believe the atmosphere holds 0,03% H2O-gas (don't whip me on details)
|The maximum contents of H2O-gas is dependant on temperature (dewpoint
|temperature). If H2O-gas is evaporated/sublimed during day when
|temperature and dewpoint is 'high', it follows that it may condense
|to night to ice-dew or to ice-crystals in a clouds.

Doesn't the CO2 regularly sink down at night, seeing as how the
temperature tends to drop? Every night, there ought to be *some*
kind of condensation of H20, CO2, and dust particles, what there
are of them.