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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 Beauty of Maps

The Beauty of Maps

2010  Art
Life

Life

2009  Nature
Future of Work

Future of Work

2021  Technology
Shine a Light

Shine a Light

2008  Art
Myths and Heroes

Myths and Heroes

2005  History
Senna

Senna

2010  Culture
Prehistoric Planet

Prehistoric Planet

2022  Science