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Heaven and Hell
Heaven and Hell  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.

Genre: Science  Duration: 01:00:00

Related Searches: Astronomy, Asteroid, Venus, Tunguska, Venera, Global warming, Climate, Ecology, Enviromentalism, The Earth, Climate change

Series: Cosmos

IMAX Hubble
Journey to the Edge of the Universe
New Dawn
Dawn Of Humanity
Rivals
The First Christianity
Planet Ant Life inside the Colony
Life of a Universe Creation
History of the Eagles 1
The Worst Car in the History of the World
Building the Sun The 250 Million Degree Problem
Machu Picchu Decoded
No Impact Man The Documentary
The 21st Century Race for Space
Holy War
Bomb It
Quantum Computing
Robots
10 Things You Need to Know about the Future
The Search for a New Earth
Everything
Alien Technology
Dynamic Salt
The Day the Dinosaurs Died
The Beatles Eight days a week
Underwater Universe of the Orda Cave
Woody Allen A Documentary 1
Finding Atlantis
Samurai Sword
What If Cannabis Cured Cancer
Planet Dinosaur Ultimate Killers
Exoplanets
Snake Killers Honey Badgers of The Kalahari
Planet Ocean
George Harrison Living in the Material World 1 of 2
The Art Of The Impossible
IMAX Hubble
Journey to the Edge of the Universe
New Dawn
Dawn Of Humanity
Rivals
The First Christianity
Planet Ant Life inside the Colony
Life of a Universe Creation
History of the Eagles 1
The Worst Car in the History of the World
Building the Sun The 250 Million Degree Problem
Machu Picchu Decoded
No Impact Man The Documentary
The 21st Century Race for Space
Holy War
Bomb It
Quantum Computing
Robots
10 Things You Need to Know about the Future
The Search for a New Earth
Everything
Alien Technology
Dynamic Salt
The Day the Dinosaurs Died
The Beatles Eight days a week
Underwater Universe of the Orda Cave
Woody Allen A Documentary 1
Finding Atlantis
Samurai Sword
What If Cannabis Cured Cancer
Planet Dinosaur Ultimate Killers
Exoplanets
Snake Killers Honey Badgers of The Kalahari
Planet Ocean
George Harrison Living in the Material World 1 of 2
The Art Of The Impossible


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