Entertainment

Colonizing Mars or more distant planets seems like science fiction. But becoming a spacefaring species may be in our near future. This hour, TED speakers on living beyond Earth–and whether we should. Guests include NASA Chief Scientist James Green, science writer Stephen Petranek, MIT Media Lab researcher Lisa Nip, and […]

(Original broadcast date: December 12, 2014) What does it mean to be courageous? Is it an automatic response or a conscious choice? This hour, TED speakers examine the nature of courage and what it takes to risk everything to do the right thing. Guests include entrepreneur Margaret Heffernan, reporter Janine […]

We’re told if the economy is growing, and if we keep producing, that’s a good thing. But at what cost? This hour, TED speakers explore circular systems that regenerate and re-use what we already have. Guests include economist Kate Raworth, environmental activist Tristram Stuart, landscape architect Kate Orff, entrepreneur David […]