Water (ice) Found on Mars?
jeffthompson writes "Images from the Mars Global Surveyor show formations near the
equator that were possibly made by
ice inder the surface. And there's a chance the ice is still
there which would be a prime place to look for microbes."
Except that in order for CO2 to become a liquid at all, you need an atmospheric pressure ABOVE that found here on earth (CO2 is 'dry ice' as it cannot exist in the liqid state unelss under pressure). If the beforementioned structures were to be verified as created by CO2-liquid, this would be a verry important and optimistic result, as the pressure on Mars vould have th have been much higher than today.
The structures found by the sattelites the past few years suggests that flowing water have existed on the surface of Mars in the past.
I hope it is still there (as some of the images returned have suggested, at least it was there some 10000 years ago), as this would make manned trips to Mars possible and practical.
Many landforms found on Mars have been made by flowing liquid (as they are so like those found on earth), and water is just the only plausible liquid avaliable on Mars.
Yours Yazeran
Plan: To go to Mars one day with a hammer.