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Earthquakes aren't supposed to happen in places like Texas and Oklahoma. Scientists have begun tracking quakes to see if they are connected to fracking. TechKnow's Marita Davison profiles one Texas town desperately fighting for solid ground - while contributor Crystal Dilworth looks at an innovative solution to clean up fracking wastewater. Phil Torres goes one on one with the YouTube astrounaut.
WATCH: TechKnow explores how advances in bionic technologies are changing lives.
WATCH: TechKnow reports on a kid genius at NASA who puts low-cost artificial limbs within reach.