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.
Other Videos That May Interest You:
The Psychology of Your Future Self - Video by Dan Gilbert
Dan Gilbert shares recent research on a phenomenon he calls the 'end of history illusion,' where we somehow imagine that the person we are right now is the person we'll be for the rest of time.
Eve Ensler: Suddenly, My Body
Poet, writer, activist Eve Ensler lived in her head. In this powerful talk from TEDWomen, she talks about her lifelong disconnection from her body -- and how two shocking events helped her to connect with the reality, the physicality of being human.
Alexander Tsiaras: Conception to Birth - Visualized
Image-maker Alexander Tsiaras shares a powerful medical visualization, showing human development from conception to birth and beyond. (Some graphic images.)
Stewart Brand: The dawn of de-extinction. Are you ready?
This video is Stewart Brand's Ted lecture on the scientific challenges and moral issues surrounding the resurrection of extinct species.
Global Warming - Can We Risk It?
A new way to think about the climate change debate, with over 13 million total views on various postings.