Hopefully the rovers will put the issue to rest within the next week, but until then:

Due to polar ice caps, and some water vapour in the air, and the planet is covered with Iron OXIDE and there is hydrogen in the air. I would think there is water underground. The rocky surface doesn't seem to hold water that well

 

The water may form caves, and as it vaporizes it may form a breathable atmosphere in those caves. Pretty interesting.

Yeah, I also heard that there were polar ice caps on mars!

if it has a warm core like our Earth (and there`s no reason to beleive it doesn`t) then I recon there will be liquid water either deep undergroung in caverns and under the ice caps as Ice can act as an insulator too

NASA. Mars. Ocean. Yeah.

 

http://www.newscientist.com/news/news.jsp?id=ns99994808

YT2095 said in post # :

if it has a warm core like our Earth (and there`s no reason to beleive it doesn`t) then I recon there will be liquid water either deep undergroung in caverns and under the ice caps as Ice can act as an insulator too

There must be reasons, otherwise Mars' core wouldn't be considered to be long-cooled and 'frozen'.

 

Although the MSG found Mars may have a liguid-like outer core, even that would not necessarily mean significant temperature changes in the crust.

There must of, at one point been some form of liquid on mars. Water is defenately a possiblilty. The chances of some object in space crashing into the planet with some form of solid or liquid that would of been a liquid in Mars' atmosphere are to high.

 

In large quantities. Yes There was water on mars. Saw a special on PBS about the earths magnetic feild. How it reverses it self(North pole moves to the south pole) every so many thousand years. But while switching from N to S, the strength of the feild dips VERY low, so low that it is possible for solar atoms to peirce the atmosphere and carry off diffrent atmospheric particles. Including water. Which is one theory on Mars' downfall.

I believe Mars Express found evidence of water very shortly after entering into orbit of Mars.

I believe that there used to be water and life on mars.

There IS water.

 

 

 

 

 

(I just have no proof.)

there is water, and there must have been life there..and itz up to the NASA to discover wot took place for LIFE TO go extinct..