Just when it seems that technology can't amaze us further, here comes a new batch of next-gen, gee-whiz projects en route to reality. Our panel of big thinkers opens a window on tomorrow. Have you heard of asteroid mining? Eric Anderson's company plans to probe space rocks for water and platinum group metals. Or how about John Kelly's vaunted IBM research team, tooling up its Watson technology (of "Jeopardy!" fame) to help sequence DNA and speed cancer treatment? Or Eric David's Organovo scientists developing printing capabilities to create living tissue--and even human organs--on demand? From the vastness of the cosmos to the microscopic foundations of life, this panel of visionaries points us to the marvels of the future.

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