 It's not the passage of time that makes it so hard to get older. It's ageism, a prejudice that pits us against our future selves -- and each other. Ashton Applewhite urges us to dismantle the dread and mobilize against the last socially acceptable prejudice. "Aging is not a problem to be fixed or a disease to be cured," she says. "It is a natural, powerful, lifelong process that unites us all." Watch »  On August 21, 2017, the moon's shadow will race from Oregon to South Carolina in what some consider to be the most awe-inspiring spectacle in all of nature: a total solar eclipse. Umbraphile David Baron chases these rare events across the globe, and in this ode to the bliss of seeing the solar corona, he explains why you owe it to yourself to witness one, too. Watch » |  "Every time a machine gets smarter, we get smarter," says Tom Gruber, the co-creator of Siri. He shares his vision for a future where AI helps us achieve superhuman performance -- from turbocharging our design skills to helping us remember everything we've ever read and the name of everyone we've ever met. Watch »  Behold the microscopic jungle in and around you: tiny organisms living on your cheeks, under your sofa and in the soil in your backyard. We sanitize, exterminate and disinfect them, but maybe we should take another look, says microbiologist Anne Madden. In fact, they could be sources of new technologies and medicines waiting to be discovered. Watch » | |
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