Mars Water? Not So Fast

For decades NASA has been "following the water" on Mars with hopes of finding signs of alien life there; or at least signs that future colonists won't die of thirst. Now a Texas geologist has dared to revive an old, almost heretical idea -- backed up with all the latest data -- that the Red Planet has been bone dry for billions of years. Mars' spectacular grand canyons were not carved by catastrophic floods, says Texas Tech's David Leverington, but by slippery, low-viscosity lavas. This lava...Full Story
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