Mars world that never was

Life on Mars?  underground water---does not give up its secrets easily  canals-did it move water to dry places?
heavily cratered-deepest canyon and biggest volcanoes in solar system

viking robot team in mars
11% of the mass of earth
no plate tectonics as on earth
craters? river beds where did the water go?Meridiani Planum tiny blueberry pellets
sulfate salt in rocks signs of water
lopsided planet

1997 Mars global surveyor
MRO orbiter  Mars wobbling
Phoenix landers robot
Tharsis-enormous volcanoes
Mariner 9 mission
Valles Marinaris