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About this book
Humans have always been fascinated by the possibility of extraterrestrial life, often wondering if we are alone in the universe. Drawing on nearly fifty years as a leader in planetary exploration, Louis Friedman brings into focus the subject of extraterrestrial life, separating knowledge from conjecture, fact from fiction, to draw scientific and technical conclusions that answer this enduring question.
Friedman argues that intelligent life is probably rare in the universe (maybe even uniquely on Earth) but that simple life is likely abundant on millions or billions of planets waiting now to be discovered. He asserts that studying and searching for extraterrestrial life cannot be done by interstellar probesâdue to the vastness of space and the comparative brevity of human lifespansâbut it can be done remotely by a new technique involving the solar gravity lens that can magnify exoplanets by tens of billions. This technique will allow humankind to explore exoplanets and open up an exciting new field of comparative astrobiology.
Wide-ranging in scope, this book discusses the history of searching for extraterrestrial life, the scientific evidence thereof, and finally his own conclusions on what's next. Included in the book are three appendices: an explanation of interstellar messaging, a reprint of a debate between Carl Sagan and Ernst Mayr on extraterrestrial intelligence, and an opinion essay on the search for extraterrestrial intelligence.
Friedman argues that intelligent life is probably rare in the universe (maybe even uniquely on Earth) but that simple life is likely abundant on millions or billions of planets waiting now to be discovered. He asserts that studying and searching for extraterrestrial life cannot be done by interstellar probesâdue to the vastness of space and the comparative brevity of human lifespansâbut it can be done remotely by a new technique involving the solar gravity lens that can magnify exoplanets by tens of billions. This technique will allow humankind to explore exoplanets and open up an exciting new field of comparative astrobiology.
Wide-ranging in scope, this book discusses the history of searching for extraterrestrial life, the scientific evidence thereof, and finally his own conclusions on what's next. Included in the book are three appendices: an explanation of interstellar messaging, a reprint of a debate between Carl Sagan and Ernst Mayr on extraterrestrial intelligence, and an opinion essay on the search for extraterrestrial intelligence.
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Yes, you can access Alone but Not Lonely by Louis Friedman in PDF and/or ePUB format, as well as other popular books in Biological Sciences & Astronomy & Astrophysics. We have over one million books available in our catalogue for you to explore.
Information
Table of contents
- Cover
- Title Page
- Copyright Page
- Contents
- List of Illustrations
- Foreword by Mae Jemison
- Acknowledgments
- Introduction
- 1. The Search for Extraterrestrial LifeâFrom Religion to Science
- 2. Intelligence
- 3. Where Are They?âWe Are Alone
- 4. An Abundance of WorldsâAn Abundance of Life
- 5. Exploring New WorldsâWe Are Not Lonely
- 6. Visiting Exoplanets: Interstellar Flight, a Bridge Too Far
- 7. Using Natureâs Telescope
- 8. Real Interstellar Exploration
- 9. Comparative Astrobiology
- Appendix A. Interstellar Messaging
- Appendix B. Mayr Versus Sagan, a Debate on Extraterrestrial Intelligence
- Appendix C. The Search for Our Terrestrial Intelligence
- Notes
- Index