Introduction

Talks at google brings the world's most influential thinkers, creators, makers and doers to one place. Every episode is taken from a video that can be seen at u tue dot com. In august two thousand six the international astronomical union voted pluto out of planet hood. For america, pluto is entrenched in our cultural, patriotic view of the cosmos. And famed astrophysicist and science communicator kneelto grass, tyson is on a quest to discover why.