Cosmos: A Personal Voyage — Season 1, Episode 4: Heaven and Hell

Episode synopsis

A descent through the hellish atmosphere of Venus to explore its broiling surface serves as a warning to our world about the possible consequences of the increasing greenhouse effect. Then Dr. Sagan leads us on a tour of our solar system to see how other heavenly bodies have suffered from various cosmic catastrophes.

About Cosmos: A Personal Voyage

Carl Sagan covers a wide range of scientific subjects, including the origin of life and a perspective of our place in the universe.

More episodes from Season 1

• E1The Shores of the Cosmic Ocean
• E2One Voice in the Cosmic Fugue
• E3Harmony of the Worlds
• E5Blues for a Red Planet
• E6Travellers' Tales
• E7The Backbone of Night
• E8Journeys in Space and Time
• E9The Lives of the Stars
• E10The Edge of Forever
• E11The Persistence of Memory
• E12Encyclopedia Galactica
• E13Who Speaks for Earth?