O.M. freakin' G. Obviously you had to google "air" and finding it only pertains to earth, you adjusted your response to the more general term "atmosphere". Dear discerning Reader: A poster who can't be trusted to stay current on the cutting edge of 4th-grade science class can't be trusted to advise you on your investment portfolio, his ability to cut and paste facts about the Mars "air", uh, that is, atmosphere notwithstanding.
And, no, I don't have to look up "rain" and "dew" because I actually am current on the cutting edge of 4th-grade science class.
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