Who Speaks for Earth?
- L'épisode a été diffusé 21 déc. 1980
- 1h
Ajouter une intrigue dans votre langueCarl Sagan considers the significance of science and discuss the importance of human survival in the nuclear age.Carl Sagan considers the significance of science and discuss the importance of human survival in the nuclear age.Carl Sagan considers the significance of science and discuss the importance of human survival in the nuclear age.