TED is a nonprofit devoted to ideas worth spreading. On this video feed, you'll find TED Talks to inspire, intrigue and stir the imagination from some of the world's leading thinkers and doers, speaking from the stage at TED conferences, TEDx events and partner events around the world. This podcast is also available in SD video and audio-only formats.
https://www.ted.com/talks
What a planet needs to sustain life | Dave Brain
"Venus is too hot, Mars is too cold, and Earth is just right," says planetary scientist Dave Brain. But why? In this pleasantly humorous talk, Brain explores the fascinating science behind what it takes for a planet to host life -- and why humanity may just be in the right place at the right time when it comes to the timeline of life-sustaining planets.