I think aliens live there 

[Zak Roy Yoballa]

I think there is a possibility of bacteria or the like under the polar caps, or perhaps in caves and the like. 

[Phantom X]

Human aliens? Small possibility. Bacteria and germs? Likely. There is a long standing theory that some bacteria from a comet came from Mars, and could withstand that kind of climate. They also just found a possible geyser on Mars. Let me see if I can find the article....

By the way, I was the one who said "no" (I feel so lonely).  I think there may have been in the past, and certain types of bacteria *may* be able to live there, but I think that life has died out for now.  Basically, there's not anything there at the moment, but we could make it so there was if we found bacteria that likes really harsh climates.  I mean, I know that there's bacteria that survives at extremely hot temperatures, but I don't know about cold with the atmosphere and everything.  Well, unless by "life" it could be something other than an organic (carbon based) lifeform, I guess.  I accept the possibility that I may be very wrong and will wait for Nasa to correctly conduct their experiment on it.  I believe they tried before and had a few techincal difficulties...

I wonder why they say they are looking for some form of water (or signs of former/ life or conditions that there was or could have been ) , when they send probes, they send them everywhere except to the polar caps

I would send them there just to see what they are made of

I think there is a possibility of bacteria

I agree with ZRY, if there is any it would be something simple, conditions there are harsh
 

[Moloch]

.

They're probably too afraid of us not being the only things out there.  It would make anyone insecure if they thought about it hard enough,

I found out they are sending a probe to mars north pole

Source: http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Mars&MCode=Phoenix

   
               Phoenix Mission to Mars
      
               
Phoenix:
Phoenix will land in an ice-rich region on Mars' north pole. The lander will use a robotic arm to dig into the arctic terrain in search of clues to the geologic history of water on Mars. It will also search for evidence of possible habitable zones that could support microbial life.

"Even though the northern plains are thought to be too cold now for water to exist as a liquid, periodic variations in the martian orbit allow a warmer climate to develop every 50,000 years," explains Mr. Peter H. Smith, the mission's principal investigator. "During these periods the ice can melt, dormant organisms could come back to life, (if there are indeed any), and evolution can proceed. Our mission will verify whether the northern plains are indeed a last viable habitat on Mars."