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The Secret Life of the Universe

An Astrobiologist's Search for the Origins and Frontiers of Life

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About The Book

One of the world’s leading astrobiologists takes us on an awe-inspiring journey across the cosmos to investigate some of humanity’s most profound questions: Are we alone in the universe? And how did life on Earth begin?

We are in a golden age in astronomy, living on the cusp of breakthroughs that will revolutionize our understanding of our place in the cosmos. Yet a profound question remains: Are we alone in the universe?

We have never been closer to answering this question. In The Secret Life of the Universe, celebrated astrobiologist and the director of the Carl Sagan Center at the SETI Institute Nathalie A. Cabrol takes us to the frontiers of the search for life. The book’s odyssey begins by exploring how life began on Earth in order to understand what’s necessary for its existence elsewhere. What role did our moon play? And could life on Mars have seeded life on Earth?

Cabrol continues this dazzling interplanetary tour, illuminating the likeliest places for life in our neighborhood: While Mars and the icy moons of Jupiter and Saturn are among the top contenders, recent missions are redefining the limits of habitability to include unexpected worlds. Finally, we seek life beyond our solar system, becoming witness to a revolution in the night sky: the realization that there are as many planets as stars in our galaxy. With more than 300 million exoplanets in the habitable zone of their stars in the Milky Way alone, to think we are alone, or the only advanced intelligent civilization, may be little more than nonsense.

The Secret Life of the Universe is a comprehensive and authoritative guide to the search for life—“a mind-altering and exhilarating read for anyone who has ever wondered: are we alone?” (Helen Macdonald, author of H Is for Hawk).

About The Author

Photograph by Andrea Frazetta
Nathalie A. Cabrol

Nathalie A. Cabrol is a French American explorer and astrobiologist and the director of the Carl Sagan Center at the SETI Institute. She researches habitability and life beyond Earth, develops science exploration strategies for NASA for Mars and Titan, designs robotic field tests, and leads projects in planetary science and astrobiology. Cabrol documents life’s adaptation to extreme environments and the effects of rapid climate change. She has written over six hundred peer-reviewed publications and conference proceedings and has published four books on planetary science. Cabrol also holds the women’s world record for free and scuba diving at altitude. Born in France, she lives in California.

Product Details

  • Publisher: Scribner (August 13, 2024)
  • Length: 320 pages
  • ISBN13: 9781668046708

Raves and Reviews

Named a Best Book of 2024 by the New Yorker

“Astonishing . . . Cabrol [is] an assured and accessible guide.” The New Yorker

“An authoritative book on the hunt for life's origins – and ET . . . Her book is full of such wonders. Cabrol clearly communicates big ideas and condenses decades of exploration and research into fast-paced chapters.” New Scientist

“Cabrol writes that we’re in the midst of a ‘golden age of astrobiology,’ and her book is an awe-inspiring and lucid primer… She also offers a fascinating preview of future space missions that may help answer that question even further.” Associated Press

The Secret Life of the Universe is an enthralling read, introducing an exciting and quickly accelerating field. It’s sure to captivate readers from start to finish.” BBC Sky at Night

“This stimulating survey…details how [Cabrol] and other scientists search the cosmos for extraterrestrial life… Cabrol has a talent for making technical research accessible for general readers and serves up a bounty of fascinating trivia… Amateur astronomers will be spellbound.” Publishers Weekly

“Some people are in the enviable position of loving their work. Cabrol is one of them, and it shows in this wonderfully sweeping book… This is a book for anyone with an interest in scientific discovery and a perfect choice for any budding astronomer or astrobiologist. Combining enthusiasm and knowledge, Cabrol gives a lovely guided tour of the possibilities of the cosmos.” Kirkus, starred review

“Read Cabrol if you want a vivid, fiercely intelligent tour of what may turn out to be our teeming, life-filled solar system.” Daily Telegraph

“Nathalie Cabrol is an ideal guide . . . her book becomes truly dizzying in the prospects it opens up. “ Daily Mail

“A highly informative survey of the current state of astrobiology.” Literary Review

“A highly readable, entertaining and mind-expanding read from a formidable scientist.” iNews

“In this cutting-edge, wide-ranging survey of a truly extraordinary subject, the celebrated scientist Nathalie Cabrol takes us on an odyssey full of astonishing possibility, crossing vast distances and many scales to tell the story of our search for extraterrestrial life. The Secret Life of the Universe weaves together the history of space exploration, planetary science, the changing technological and intellectual frameworks of SETI, and deliberations on the very nature and meaning of life. It’s a mind-altering and exhilarating read for anyone who has ever wondered: are we alone?"—Helen Macdonald, author of H is for Hawk

The Secret Life of the Universe delivers on the grand promise of its title. Intimate and cosmic, it is the passionate traveler’s tale of a distinguished scientist approaching the most fascinating questions of all.” —Ann Druyan, writer, producer, and director of “Cosmos”

“Of all the popular books on the search for life that are now being published, this one is quite special. Written by an outstanding astrobiologist, Dr. Nathalie Cabrol, The Secret Life of the Universe takes you step by step through each of the top candidates in the solar system and beyond into the Milky Way where life could exist, and how we are looking for it. Nathalie tackles advanced concepts and explains them with ease. I highly recommend this book!” —James L. Green, former NASA chief scientist

“In The Secret Life of the Universe, astrobiologist Nathalie Cabrol takes us on a sweeping exploration of life on Earth and the potential of the universe to harbor life beyond our planet. Drawing on the latest space missions and ground-based studies, she paints a picture of habitability over time perhaps reaching from the inner edge of our solar system to its outermost depths and from its earliest days to the present. Beyond our solar system, she charts the potential for habitability and even civilizations on countless exoplanets orbiting stars similar to and different from our sun. The nature of life as well as the practical and ethical dilemmas we face as a technological space-faring society are also part of the journey we take with her through the pages of this stimulating and provocative book.” —Carl B. Pilcher, Former Director of NASA's Astrobiology Institute

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