ALONE BUT NOT LONELY,
EXPLORING FOR EXTRATERRESTRIAL LIFE
CHAPTERS
-
The Search for Extraterrestrial Life – From Religion to Science
Is human life unique in the Universe or is it ubiquitous? A profound and popular question -
Intelligence
There is no evidence that intelligence helps species to survive. There is some evidence against it. -
Where are They? - We Are Alone
Empirical evidence suggests that intelligent life is, at most, rare in the Universe. -
An Abundance of Worlds – An Abundance of Life
The Universe may have no other intelligent life but it is teeming with simpler life -- on billions of worlds. -
Exploring New Worlds - We Are Not Lonely
Exploration of potentially habitable worlds provides humankind with unlimited adventure and opportunities for discovery. -
Visiting Exoplanets: Interstellar Flight, A Bridge Too Far
Space is too big and our lives too short to reach the stars -- at least physically. -
Using Nature’s Telescope
Nature (and Einstein) has provided us with a scientific instrument capable seeing exoplanets - up close and personal. It is far out, but within our reach. -
Real Interstellar Exploration
The bridge too far of interstellar flight can be crossed virtually making real exploration possible. -
Comparative Astrobiology
The future holds the promise of discovering and studying life on many worlds. This will lead to a new field of comparative astrobiology, whose results (like those of comparative planetology and of a heliocentric solar system) are unpredictable, but certain to be far-reaching.
Appendix A - Interstellar Messaging
Appendix B - Mayr vs. Sagan, A Debate on Extraterrestrial Intelligence
Appendix C – The Search for Our Terrestrial Intelligence
COMMENTS
“In Alone but Not Lonely, Dr. Friedman takes a courageous dive into the mystery of the sky above us and endeavors to divine our place and future in this universe and whether we will ever meet our neighbors, face to face, in person.”
—Mae Jemison, MD and NASA astronaut
“From the birth of Earth through the emergence of AI, Friedman’s wide-ranging and incisive review of space exploration bursts a ton of bubbles—yet paints a galactic future abound with adventure.”
—Greg Pass, founding chief entrepreneurial officer of Cornell Tech and former CTO of Twitter
“This is an important book by a true expert in the field. Lou Friedman has spent his life pondering the question of life in the universe and participated in many of the relevant space missions. Much has been written about alien civilizations, both in fiction and in fact. This book is an essential antidote to wild speculation.”
—Simon P. Worden, chairman of the Breakthrough Prize Foundation
“No human has devoted more lifespan to our future in space than Louis Friedman. Here he takes a bold stand on the giant question of intelligent life in the universe.”
—David Brin scientist, and author of EARTH and The Postman
“ipsum factum uptim comim……..”
- Bill Nye, CEO The Planetary Society
AGREE? DISAGREE?
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