water on mars more proof?

Question

this pisses me off. what is mars atmosphere like? how bout gravity would water flow of float? since mars is closer with no magnetic poles would the sun allow water due to heat. what other proof are these pictures of rounded rock due to water erosion or could the be from years of wind? I'm not doubting water could have been or even still be there. But nobody has given real proof that it was there. I need more than just a picture of a outline does any body have answers to these questions

Answer 1

Mile thick ice has been found using radar on mars near one of the poles.