SolarmovieOne

Cosmos: In this final episode, Dr. Carl Sagan reviews the previous episodes and how they relate to each other. What has history taught us? How did we get to the level of understanding we're at now? What's the best way to increase our knowledge of the Cosmos in the future? There have been big mistakes made by mankind in the past and as our knowledge increases our mistakes could lead to our destruction. How can we avoid that? He discusses the murder of Hypatia, the female scientist of ancient Alexandria, and the destruction of the Library of Alexandria, which was once the largest in the world. Dr. Sagan points out how vulnerable the Earth is to the toxic substances mankind churns out on a regular basis. The greenhouse effect, pollution, and nuclear weapons affect the earth, and have the capacity to damage the ecobalance, perhaps forever. He then brings up the subject of time travel, and winds up with his favorite topic, searching for life elsewhere in the universe.

How to Watch Cosmos Season 1 Episode 13 Legally and Safely

If you want to stream Cosmos Season 1 Episode 13 through reputable and legal services, there are a few good options depending on where you are. Subscription platforms like HBO Max, Disney+, Netflix, Amazon Prime Video, and Apple TV+ sometimes carry Cosmos Season 1 Episode 13 films or related DC titles—though availability depends on your country.

If you’d rather not commit to a subscription, there are ad‑supported, free (but legal) platforms such as Tubi, Pluto TV, Peacock or Crackle (where available in your region) that occasionally host superhero films.

Lastly, don’t forget about library‑linked streaming options like Kanopy or Hoopla (if your library or university is registered), and official uploads by film distributors on YouTube—these can also give you legal access to classic movies.