Carl Sagan's Cosmic Connection: An Extraterrestrial by Carl Sagan

By Carl Sagan

In 1973, Carl Sagan released The Cosmic Connection, a bold view of the universe, which quickly turned a vintage paintings of well known technological know-how and encouraged a iteration of scientists and lovers. This seminal paintings is reproduced right here for a complete new new release to get pleasure from. In Sagan's ordinarily lucid and lyrical variety, he discusses many themes from astrophysics and sunlight approach technology, to colonization, terraforming and the quest for extraterrestrials. Sagan conveys his personal pleasure and sweetness, and relates the revelations of astronomy to the main profound human difficulties and matters: concerns which are simply as legitimate this day as they have been thirty years in the past. New to this version are Freeman Dyson's reviews on Sagan's imaginative and prescient and the significance of the paintings, Ann Druyan's review of Sagan's cultural value as a champion of technology, and David Morrison's dialogue of the advances made given that 1973 and what grew to become of Sagan's predictions. Who is familiar with what wonders this 3rd millennium will demonstrate, yet something is sure: Carl Sagan performed a special function in getting ready us for them.

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Extra resources for Carl Sagan's Cosmic Connection: An Extraterrestrial Perspective

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The extraterrestrials cannot possibly understand English or Russian or Chinese or Esperanto, but they must share with us common mathematics and physics and astronomy. " But we may be wrong. One exploration of a total misunderstanding – and by far the most amusing such description – was made by the British humor magazine Punch in an article headlined, "According to the [Paris] Herald Tribune only one in ten of NASA scientists was able to figure out its message. " Punch presents an opinion sampling of four representative extraterrestrials.

3-6. But mere general exploration does not yet motivate pervasive public interest in space. For many, the rocks returned from the Moon were a great disappointment. They were seen as merely rocks. What role they might play in chronicling the days of creation of the Earth-Moon system has not yet been explained adequately to the public. Where public interest in space is most apparent is in cosmology and in the search for extraterrestrial life, topics that strike resonant chords in a significant fraction of mankind.

An understanding of the circulation of the massive atmospheres of Venus and Jupiter will improve our understanding of oceanic, as well as atmospheric, circulation on Earth. Or consider the planet Mars. Here is a planet with – quite remarkably – the same period of rotation and the same inclination of its axis of rotation to its orbital plane as Earth. But its atmosphere is only 1 percent of ours, and it has no oceans and no liquid water. Mars is a control experiment on the influence of oceans and liquid water on atmospheric circulation.

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