Originally Posted By: MikeBinOK


This is the Martian Summer and the temperatures are too "hot" (even though they are far below freezing!) for carbon dioxide to exist in ice form. They're fairly sure it isn't carbon dioxide, and is water ice. Thank goodness!


Originally Posted By: Mike Kremer


Hi, Yes like yourself and millions of others, we all hope it is water.
Evaporation of any substance in the more rarified atmosphere under less gravity, would complete quicker, whatever the temperature.
I was of the opinion that it was the white substance which had evaporated....Having found a later picture I am not so sure now.

The obljects are bottom left, but in the shade, yet the sunlit
white (salt/C02/ice??)material is still there. Adding to the mystery.

http://antwrp.gsfc.nasa.gov/apod/ap080621.html




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"You will never find a real Human being - Even in a mirror." ....Mike Kremer.