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Lucianne Walkowicz: Look Up For a Change
Lucianne Walkowicz explains the importance of preserving our dark night sky from the perils of light pollution and other lesser-known factors.
The Holstee Manifesto: Lifecycle Video
The Holstee Manifesto is a call to action to live a life full of intention, creativity, passion, and community.
Hannah Brencher: Love Letters to Strangers
Hannah Brencher's mother always wrote her letters. So when she felt herself bottom into depression after college, she did what felt natural -- she wrote love letters and left them for strangers to find. The act has become a global initiative, The World Needs More Love Letters, which rushes handwritten letters to those in need of a boost.
Phil Plait: How to Defend Earth From Asteroids
What's six miles wide and can end civilization in an instant? An asteroid - and there are lots of them out there. With humor and great visuals, Phil Plait enthralls the TEDxBoulder audience with all the ways asteroids can kill, and what we must do to avoid them.
The Hidden Power of Siblings: Jeff Kluger at TEDxAsheville
This video features Jeffrey Kluger exploring the powerful bond between siblings.