Pale Blue Dot: A Vision of the Human Future in Space by Carl Sagan PDF

By Carl Sagan

ISBN-10: 0345376595

ISBN-13: 9780345376596

"FASCINATING . . . MEMORABLE . . . REVEALING . . . might be the easiest OF CARL SAGAN'S BOOKS."
--The Washington submit booklet international (front web page review)

In Cosmos, the overdue astronomer Carl Sagan solid his gaze over the great secret of the Universe and made it available to hundreds of thousands of individuals world wide. Now during this gorgeous sequel, Carl Sagan completes his innovative trip via house and time.

Future generations will glance again on our epoch because the time whilst the human race eventually broke right into a significantly new frontier--space. In light Blue Dot Sagan lines the spellbinding background of our release into the cosmos and assesses the longer term that looms earlier than us as we circulation out into our personal sunlight process and directly to far away galaxies past. The exploration and eventual payment of alternative worlds is neither a delusion nor luxurious, insists Sagan, yet quite an important situation for the survival of the human race.

"TAKES READERS a long way past Cosmos . . . Sagan sees humanity's destiny within the stars."
--Chicago Tribune

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Extra info for Pale Blue Dot: A Vision of the Human Future in Space

Sample text

This is not a failing of science, but one of its graces. Of course, worldview consensus is comforting, while clashes of opinion may be unsettling, and demand more of us. But unless we insist, against all evidence, that our ancestors were perfect, the advance of knowledge requires us to unravel and then restitch the consensus they established. In some respects, science has far surpassed religion in delivering awe. How is it that hardly any major religion has looked at science and concluded, "This is better than we thought!

Planetary probes from close range explore the gorgeous array of other worlds in our solar system comparing their fates with ours. All of these activities are forward-looking, hopeful, stirring and cost-effective. None of * them requires "manned" spaceflight. A key issue facing the future of NASA and addressed in this book is whether the purported justifications for human spaceflight are coherent and sustainable. Is it worth the cost? But first, let's consider the visions of a hopeful future vouchsafed by robot spacecraft out among the planets.

Your expedition to the Earth must be considered highly successful. You've characterized the environment; you've detected life; you've found manifestations of intelligent beings; you may even have identified the dominant species, the one transfixed with geometry and rectilinearity. Surely this planet is worth a longer and more detailed study. That's why you've now inserted your spacecraft into orbit around the Earth. Looking down on the planet, you uncover new puzzles. All over the Earth, smokestacks are pouring carbon dioxide and toxic chemicals into the air.

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Pale Blue Dot: A Vision of the Human Future in Space by Carl Sagan

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