text: is there really signs of water on mars and has there ever been life found on mars?   there is water on mars.  we know this because it has polar "ice caps" ( much like the earth )  mars also has a massive canal system that was made by flowing water millions of years ago when it may have been warmer.  no liquid water has been found to date however.  water principly exists in the solid and gas ( water vapor ) phase on mars.  no evidence of life has ever been found to date ( some controversial evidence remains but is not considered remarkable ).  the recent mars rovers sent there may yield further clues.  hope it answers your most interesting question.