Neil de Grasse Tyson: Earliest Evidence of Life on Earth

What is the earliest limit of the fossil and tectonic record How much earlier did Earth support life and have a stable crust Neil deGrasse Tyson discusses earthquakes, plate tectonics, and subduction as he answers this Cosmic Query with comic cohost Chuck Nice. This Behind the Scenes video was shot during the recording of our episode, Cosmic Queries: Planet If you d like to listen to the full podcast, click here: If you love StarTalk Radio, don t miss out on any StarTalk news. Sign up for our free newsletter: Catch up with StarTalk Radio around the web: iTunes SoundCloud Stitcher Twitter Facebook Google+ Pinterest