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Heaven and Hell

   1980    Science
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.
Series: Cosmos
The Making of the Mob
The Making of the Mob

   2016    History
Rome
Rome

      History
I Will Be Gone In The Dark
I Will Be Gone In The Dark

   2020    Culture
First Life
First Life

   2010    Science
Triumph of Life
Triumph of Life

   2006    Nature
The Green Planet
The Green Planet

   2022    Nature
Reel Rock
Reel Rock

   2014    Culture