SciShow
Carl Sagan (2013x172)
Date de diffusion: Nov 09, 2013
Hank pays tribute to Carl Sagan, noting his accomplishment as an astronomer and his contributions to culture -- both pop and otherwise -- as one of the great popularizers of science. Happy Carl Sagan Day!
- Première: Jan 2012
- Épisodes: 3794
- Abonnés: 2