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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
How to Grow a Planet
How to Grow a Planet

   2012    Science
The Private Life of Plants
The Private Life of Plants

   1994    Nature
Secret History of Comics
Secret History of Comics

   2017    Art
Bible's Buried Secrets
Bible's Buried Secrets

   2011    Culture
Leaving Neverland
Leaving Neverland

   2019    Culture
The Men Who Built America
The Men Who Built America

   2012    History
Depeche Mode: Live in Berlin
Depeche Mode: Live in Berlin

   2014    Art