Robotic Landers News Today

>> reporter: liquid water is a critical dissension. we have known about ice on mars since 2008 and seasonal running water since 2011 thanks to nasas mars reconnaissance orbiter. a standing stable body of water >> all the discoveries in the past have been there is water ice or maybe transient droplets on the legs of robotic landers or frost on rocks. this is the mother load, real liquid water in large amounts underneath the south polar ice cap. >> reporter: that would be a game changer in the sea...

Mars. >> liquid water is a critical distinction. weve known about ice on mars since 2008 when nasas phoenix lander found it and would not about seasonal running water since 2011 thanks to nasas mars reconnaissance orbiter. but a standing stable body of water, that is something else entirely. >> all the discoveries in the past have been there is water ice, there is ice here, ice there. maybe there is transient droplets forming like dew on the legs of robotic landers, but this is potentially the m...