Cosmos: A SpaceTime Odyssey: Temporada 3, Episódio 10

3 - 10: A Tale of Two Atoms

Two atoms from different parts of the universe meet on a small planet. Examine how a deadly embrace between science and state altered the fate of the world, and behold a gripping cautionary tale of others who grew used to living in the shadow of grave danger until it killed them all… except for one.