NASA is searching for it.
Here are a few great articles on the subject that I have recently stumbled upon:
http://www.dailygalaxy.com/my_weblog/2007/10/hirise-website-.html
http://www.dailygalaxy.com/my_weblog/2007/07/nasa-goes-under.html
http://www.dailygalaxy.com/my_weblog/2008/04/phoenix-lander.html
http://www.dailygalaxy.com/my_weblog/2007/08/new-technologie.html
http://www.dailygalaxy.com/my_weblog/2007/08/secrets-of-the-.html
What do you think? Will they find some bacteria-like lifeforms underground on Mars?
