I'm afraid that they are just wishing for evidence of water so much that they have deluded themselves into believing that they have found it.
The atmospheric pressure is so low there that water's boiling and freezing points are very close together. It would appear that what we have with Mars is a very dead planet.
they're looking for past evidence as well,and the 1/google of a chance that something survived subsurface. they are also surveying for future missions. Mars (like earth) has changed considerably over time.
posted on 05/19/2006 11:10:05 PM PDT
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