There is water at the bottom of this picture:
http://mars.lyle.org/imagery/1P155450047EFF38EVP2557L4M1.JPG.html
Maybe a Lake?
http://mars-news.de/news/M0901354_lake.gif
Maybe Methane (living things flatulate this stuff!)?
http://www.theregister.co.uk/2004/09/21/mars_methane/
Maybe a frozen sea?
http://news.bbc.co.uk/1/hi/sci/tech/4285119.stm
Maybe Life?
http://www.wired.com/news/space/0%2C2697%2C67315%2C00.html

It would sure "relax" things down here if they did find evidence of life. Everything would change. We got 1 Hr and 40 Minutes till they announce - should be cool whatever it is!

>Any bets on running water ?
>
>>http://www.nasa.gov/home/hqnews/2006/dec/HQ_M06186_Mars_Briefing.html