
Alien Earths
The New Science of Planet Hunting in the Cosmos
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Narrated by:
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Cassandra Campbell
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Dr. Lisa Kaltenegger
About this listen
This program features an introduction and epilogue read by the author.
"In the grand tradition of Carl Sagan and Neil deGrasse Tyson, we now have a new tour guide to the cosmos."―Charles Cockell, Professor of Astrobiology, University of Edinburgh
"Absorbing, informative, and entertaining."―Kirkus (Starred Review)
“[Dr. Lisa] Kaltenegger's accessible scholarship and [Cassandra] Campbell's grounded performance encourage listeners to gaze skyward and wonder.”—AudioFile
Riveting and timely, a look at the research that is transforming our understanding of the cosmos in the quest to discover whether we are alone.
For thousands of years, humans have wondered whether we're alone in the cosmos. Now, for the first time, we have the technology to investigate. But once you look for life elsewhere, you realize it is not so simple. How do you find it over cosmic distances? What actually is life?
As founding director of Cornell University's Carl Sagan Institute, astrophysicist Lisa Kaltenegger has built a team of tenacious scientists from many disciplines to create a specialized toolkit to find life on faraway worlds. In Alien Earths, she demonstrates how we can use our homeworld as a Rosetta Stone, creatively analyzing Earth's history and its astonishing biosphere to inform this search. With infectious enthusiasm, she takes us on an eye-opening journey to the most unusual exoplanets that have shaken our worldview—planets covered in oceans of lava, lonely wanderers lost in space, and others with more than one sun in their sky! And the best contenders for Alien Earths. We also see the imagined worlds of science fiction and how close they come to reality.
With the James Webb Space Telescope and Dr. Kaltenegger’s pioneering work, she shows that we live in an incredible new epoch of exploration. As our witty and knowledgeable tour guide, Dr. Kaltenegger shows how we discover not merely new continents, like the explorers of old, but whole new worlds circling other stars and how we could spot life there. Worlds from where aliens may even be gazing back at us. What if we're not alone?
A Macmillan Audio production from St. Martin’s Press.
©2024 Dr. Lisa Kaltenegger (P)2024 Macmillan AudioListeners also enjoyed...
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Critic reviews
“A stellar exploration … Readers will be riveted.”—Publishers Weekly
“Exquisite book is for all who have peered into the night sky pondering the mysteries of the universe … a mind-bending journey.”—Booklist (starred)
“Eloquent … Science and space enthusiasts will revel in this journey through the cosmos. They will undoubtedly learn novel information along the way.”—Library Journal
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Story
In the beginning, Earth was an inhospitably alien place—in constant chemical flux, covered with churning seas, crafting its landscape through incessant volcanic eruptions. Amid all this tumult and disaster, life began. The earliest living things were no more than membranes stretched across microscopic gaps in rocks, where boiling hot jets of mineral-rich water gushed out from cracks in the ocean floor. In A (Very) Short History of Life on Earth, Henry Gee zips through the last 4.6 billion years with infectious enthusiasm and intellectual rigor.
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incredibly annoying
- By A reader on 12-22-21
By: Henry Gee
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Putting Ourselves Back in the Equation
- Why Physicists Are Studying Human Consciousness and AI to Unravel the Mysteries of the Universe
- By: George Musser
- Narrated by: Alan Peterson
- Length: 8 hrs and 45 mins
- Unabridged
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Neuroscientists have painstakingly built up an understanding of the structure of the brain. Could this help physicists understand the levels of self-organization they observe in other systems? These same physicists, meanwhile, are trying to explain how particles organize themselves into the objects around us. Could their discoveries help explain how neurons produce our conscious experience? Exploring these questions and more, George Musser tackles the extraordinary interconnections between quantum mechanics, cosmology, human consciousness, and artificial intelligence.
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Strong Start, Discursive Ending
- By Oliver on 01-17-24
By: George Musser
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Fantastic Numbers and Where to Find Them
- A Cosmic Quest from Zero to Infinity
- By: Antonio Padilla
- Narrated by: Antonio Padilla
- Length: 13 hrs and 53 mins
- Unabridged
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For particularly brilliant theoretical physicists like James Clerk Maxwell, Paul Dirac, or Albert Einstein, the search for mathematical truths led to strange new understandings of the ultimate nature of reality. But what are these truths? What are the mysterious numbers that explain the universe? In Fantastic Numbers and Where to Find Them, the leading theoretical physicist and YouTube star Antonio Padilla takes us on an irreverent cosmic tour of nine of the most extraordinary numbers in physics, offering a startling picture of how the universe works.
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Exciting, Strange, Difficult = Meh
- By Michael on 05-23-23
By: Antonio Padilla
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Parallel Worlds
- A Journey Through Creation, Higher Dimensions, and the Future of the Cosmos
- By: Michio Kaku
- Narrated by: Marc Vietor
- Length: 14 hrs and 50 mins
- Unabridged
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In Parallel Worlds, world-renowned physicist and best-selling author Michio Kaku - an author who "has a knack for bringing the most ethereal ideas down to earth" (Wall Street Journal) - takes listeners on a fascinating tour of cosmology, M-theory, and its implications for the fate of the universe.
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Misleading title
- By Fara on 09-14-16
By: Michio Kaku
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The Genesis Book
- The Story of the People and Projects That Inspired Bitcoin
- By: Aaron van Wirdum
- Narrated by: Christian Neale
- Length: 10 hrs and 33 mins
- Unabridged
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Bitcoin did not appear out of nowhere. For decades prior to Satoshi Nakamoto’s invention, a diverse group of computer scientists, privacy activists, and heterodox economists tried to create a digital form of money that could operate independently of government control. The Genesis Book tells the story of the people and projects that inspired the invention of the world’s first successful peer-to-peer electronic cash system.
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Very informative!
- By Amazon Customer on 03-24-25
By: Aaron van Wirdum
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Index, a History of The
- A Bookish Adventure from Medieval Manuscripts to the Digital Age
- By: Dennis Duncan
- Narrated by: Neil Gardner
- Length: 8 hrs and 9 mins
- Unabridged
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Most of us give little thought to the back of the book - it's just where you go to look things up. But as Dennis Duncan reveals in this delightful and witty history, hiding in plain sight is an unlikely realm of ambition and obsession, sparring and politicking, pleasure and play. In the pages of the index, we might find "Butchers, to be avoided", or "Cows that shite Fire", or even catch "Calvin in his chamber with a Nonne". Here, for the first time, is the secret world of the index: an unsung but extraordinary everyday tool, with an illustrious but little-known past.
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Maybe a book that should be read rather than listened to
- By Amazon Customer on 11-09-22
By: Dennis Duncan
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Interpretation of Cats
- Understanding the Psychology of Our Feline Companions
- By: Claude Béata
- Narrated by: David Watson, Neil Gardner
- Length: 7 hrs and 27 mins
- Unabridged
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Cats are mysterious creatures, and the relationship between humans and cats has never been simple. Curious and affectionate, independent and uninterested, predator and prey. Their true nature continues to elude us, and their subtle and complex behavioral problems can often seem unsolvable or incomprehensible. So, how can we tell if a cat is suffering? What are the root causes of feline aggression? And how can we treat patients who can’t speak for themselves?
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Wonderful insight
- By Tom C on 01-31-25
By: Claude Béata
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What Is Real?
- The Unfinished Quest for the Meaning of Quantum Physics
- By: Adam Becker
- Narrated by: Greg Tremblay
- Length: 11 hrs and 45 mins
- Unabridged
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Every physicist agrees quantum mechanics is among humanity's finest scientific achievements. But ask what it means, and the result will be a brawl. For a century, most physicists have followed Niels Bohr's Copenhagen interpretation and dismissed questions about the reality underlying quantum physics as meaningless. A mishmash of solipsism and poor reasoning, Copenhagen endured, as Bohr's students vigorously protected his legacy, and the physics community favored practical experiments over philosophical arguments.
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Good, "light" "read"... potential caveat below...
- By James S. on 03-31-18
By: Adam Becker
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Waves in an Impossible Sea
- How Everyday Life Emerges from the Cosmic Ocean
- By: Matt Strassler
- Narrated by: Christopher Grove
- Length: 11 hrs and 31 mins
- Unabridged
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In Waves in an Impossible Sea, physicist Matt Strassler tells a startling tale of elementary particles, human experience, and empty space. He begins with a simple mystery of motion. When we drive at highway speeds with the windows down, the wind beats against our faces. Yet our planet hurtles through the cosmos at 150 miles per second, and we feel nothing of it. How can our voyage be so tranquil when, as Einstein discovered, matter warps space, and space deflects matter? The answer, Strassler reveals, is that empty space is a sea, albeit a paradoxically strange one.
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No pdf
- By Mark on 01-14-25
By: Matt Strassler
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Beneath the Surface
- Killer Whales, SeaWorld, and the Truth Beyond Blackfish
- By: John Hargrove, Howard Chua-Eoan
- Narrated by: John Hargrove
- Length: 8 hrs and 21 mins
- Unabridged
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Over the course of two decades, John Hargrove worked with 20 different whales on two continents and at two of SeaWorld's U.S. facilities. For Hargrove, becoming an orca trainer fulfilled a childhood dream. However, as his experience with the whales deepened, Hargrove came to doubt that their needs could ever be met in captivity.
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Tragic, Brutal
- By Gillian on 04-16-15
By: John Hargrove, and others
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Do I Know You?
- A Faceblind Reporter's Journey into the Science of Sight, Memory, and Imagination
- By: Sadie Dingfelder
- Narrated by: Sadie Dingfelder
- Length: 7 hrs and 26 mins
- Unabridged
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Science writer Sadie Dingfelder has always known that she’s a little quirky. But while she’s made some strange mistakes over the years, it’s not until she accosts a stranger in a grocery store (whom she thinks is her husband) that she realizes something is amiss. With a mixture of curiosity and dread, Dingfelder starts contacting neuroscientists and lands herself in scores of studies. In the course of her nerdy midlife crisis, she discovers that she is emphatically not neurotypical.
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The author’s curiosity keeps you interested from beginning to end
- By Ross D. Martin MD on 06-29-24
By: Sadie Dingfelder
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Life as No One Knows It
- The Physics of Life's Emergence
- By: Sara Imari Walker
- Narrated by: Sara Imari Walker
- Length: 7 hrs and 20 mins
- Unabridged
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What is life? This is among the most difficult open problems in science, right up there with the nature of consciousness and the existence of matter. All the definitions we have fall short. None help us understand how life originates or the full range of possibilities for what life on other planets might look like. In Life as No One Knows It, physicist and astrobiologist Sara Imari Walker argues that solving the origin of life requires radical new thinking and an experimentally testable theory for what life is.
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Fascinating thought patterns
- By John linden on 09-10-24
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Lucid Dying
- The New Science Revolutionizing How We Understand Life and Death
- By: Sam Parnia MD PhD
- Narrated by: Brian Nishii
- Length: 11 hrs and 39 mins
- Unabridged
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Today, for the first time in history, the scientific exploration of death and what happens when we die is real, active and ongoing. Contrary to popular perceptions, this subject is no longer the remit of philosophy, religion, or personal opinion. Truly remarkable scientific discoveries that will fundamentally affect everyone’s lives now and in the future are taking place, yet very few people are aware of them. Most people—including scientists and doctors—maintain strong beliefs about death and its experience. Those beliefs are rooted in traditional, and often cultural, notions of death.
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Excited to See Scientific Rigor Applied to This Vital Topic
- By Mav on 08-27-24
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Turning to Stone
- Discovering the Subtle Wisdom of Rocks
- By: Marcia Bjornerud
- Narrated by: Rebecca Stern
- Length: 9 hrs and 41 mins
- Unabridged
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Earth has been reinventing itself for more than four billion years, keeping a record of its experiments in the form of rocks. Yet most of us live our lives on the planet with no idea of its extraordinary history, unable to interpret the language of the rocks that surround us. Geologist Marcia Bjornerud believes that our lives can be enriched by understanding our heritage on this old and creative planet. Contrary to their reputation, rocks have eventful lives—and they intersect with our own in surprising ways.
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Very unusual book by a profound writer
- By F Shaw on 09-17-24
By: Marcia Bjornerud
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The Longest Minute
- The Great San Francisco Earthquake and Fire of 1906
- By: Matthew J. Davenport
- Narrated by: Traber Burns
- Length: 17 hrs and 19 mins
- Unabridged
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At 5:12 am on April 18, 1906, a 7.9 magnitude earthquake struck San Francisco, catching most of the city asleep. For approximately forty-eight seconds, shock waves buckled streets, shattered water mains, collapsed buildings, crushed hundreds of residents to death, and trapped many alive. Matthew Davenport draws on letters, diaries, unpublished memoirs, and previously unearthed archival records, as well as interviews with engineers and geologists, to combine history and science to tell the dramatic true story of one of the greatest disasters in American history.
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History told from those who survived
- By BamaState on 12-26-23
What listeners say about Alien Earths
Average customer ratingsReviews - Please select the tabs below to change the source of reviews.
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- Gary L.
- 04-18-25
Captivating for the Astronomy Enthusiast
Captivating. Her thoroughness was out of this world (pun intended). I loved her sense of humor too.
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- Vladimir Randy Jeune
- 11-02-24
I really enjoyed her perspective on the subject
This book made me think about the Universe in an awe inspiring way. There is so much out there that we can learn before we get the ability to go visit these alien worlds. It also reminds us that we have to take care of the only planet that we evolved on.
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- Texas Tim
- 08-09-24
Engrossing! Very well conceived and written.
Loved it! I found this book, written by an accomplished scientist with a doctorate, to be very interesting and engaging and easy to follow( I am not a scientist). It was so well conceived and written that it can be enjoyed by anyone interested in the subject of exoplanets. There are plenty of explanations, comparisons and examples to help convey the concepts discussed. I liked the many personal insights and experiences included, and of course the humor too! It left me wanting more and has renewed my own interest in the subject. Solid performance by Ms Campbell on the reading.
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- Andi
- 08-08-24
answers big questions
Well narrated and tackles one of our most enduring questions - are we alone. Very enjoyable and thought-provoking.
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