[Mars-discuss] Present-day liquid water on Mars

[Geoffrey A. Landis]

>  Thomas Coffee <tcoffee at MIT.EDU>
>
> ... and some other remarkable recent finds by the MGS imaging team:
>
> http://www.jpl.nasa.gov/videos/mgs/mgs20061206/

For what it's worth, I'd proposed that water flow like this is  
probablly made possible by the fact that the water is likely to be  
extremely saline, and hence have a very low freezing temperature:
Mars Water: Are There Extant Halobacteria on Mars?" (pdf file),  
published in Astrobiology Vol. 1., No. 2, pp. 161-164 (2001).
http://powerweb.grc.nasa.gov/pvsee/publications/mars/Halobacteria.pdf

-- 
Geoffrey A. Landis
http://www.sff.net/people/geoffrey.landis