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August 10, 2026
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Dr. Sagan answers questions such as: "What is the life span of a planetary civilization?" and "Will we one day hook up with a network of civilizations in the Milky Way galaxy?"
Where to Stream Episode 12
Season 1 · Episode 12 · Streaming in USA
Episodes
Information
| Episode air date | 14.12.1980 |
| Episode runtime | 60 min |
| Episode rating | 8.00 |
| Genres | Documentary |
| TMDB series rating | 8.6 |
| IMDb series rating | 9.3 |
| Series status | Ended |
| Age rating | 6+ |
| Country | US |
Trailer
Additional videos
COSMOS TV miniature effects
Cosmos Edit: Apple Pie
Cosmos Edit: The Brain
Cast
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