Heaven and Hell

Cosmos, Episode 4

October 19, 1980

Sagan discusses comets and asteroids as planetary impactors, giving recent examples of the Tunguska event and a lunar impact described by Canterbury monks in 1178. It moves to a description of the environment of Venus, from the previous fantastic theories of people such as Immanuel Velikovsky to the information gained by the Venera landers and its implications for Earth’s greenhouse effect. The Cosmos Update highlights the connection to global warming.

Due to the recent attack on archive.org, this content may temporarily be unavailable.

Heaven and Hell

Carl Sagan and Ann Druyan

https://www.organism.earth/library/docs/carl-sagan/cosmos-tv-cover.jpg

An image of the subject.

Find out more