Stewart Brand: The dawn of de-extinction. Are you ready?
Throughout humankind's history, we've driven species after species extinct: the passenger pigeon, the Eastern mountain lion, the dodo .... But now, says Stewart Brand, we have the technology (and the biology) to bring back species that humanity wiped out. So -- should we? Which ones? He asks a big question whose answer is closer than you may think.
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Tempest Milky Way
Timelapse video that won best overall and audience choice at 2011 Chronos Film Festival.
Amy Purdy - Living Beyond Limits
Amy Purdy talks about the power of imagination. She explains how our lives are not determined by what happens to us, but by the choices we make. Imagination allows us to break down borders, to move beyond our circumstances, to create and constantly progress.
The Hidden Power of Siblings: Jeff Kluger at TEDxAsheville
This video features Jeffrey Kluger exploring the powerful bond between siblings.
Award-Winning Teen-Age Science in Action
In 2011 three young women swept the top prizes of the first Google Science Fair. At TEDxWomen Lauren Hodge, Shree Bose and Naomi Shah described their extraordinary projects - and their route to a passion for science.
Seth Shostak: ET is (Probably) Out There -- Get Ready
Dr. Seth Shostak participates in the search for extraterrestrial life at the SETI Institute. He believes ET is out there, and there is a good chance we will discover him soon.