The age old question whether astronauts landing on Mars will be able to indulge in a good cold drnk served on the rocks has been answered. The Phoenix lander has shown ice is present. The ice they found evidently evaporated or melted over a couple of days, but that should be more than enough to get bombed.

http://news.yahoo.com/s/nm/20080620/sc_nm/space_mars_dc