Fans pick 63 books like Carl Sagan's Cosmic Connection

By Carl Sagan,

Here are 63 books that Carl Sagan's Cosmic Connection fans have personally recommended if you like Carl Sagan's Cosmic Connection. Shepherd is a community of 12,000+ authors and super readers sharing their favorite books with the world.

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Book cover of The Promise of Space

Ian Ridpath Author Of Star Tales

From my list on that have inspired my writings on astronomy and space.

Why am I passionate about this?

I am an author, editor, lecturer, and sometime broadcaster on astronomy and space. My early interest in the possibilities of extraterrestrial life and interstellar communication led me to write my first books, Worlds Beyond (1975) and Messages from the Stars (1978). This interest also led me to investigate UFO sightings, but I soon realized that their explanation lies in human misperception and not ETs. My investigation and explanation of the famous Rendlesham Forest UFO case of December 1980, widely regarded as one of the top-ten cases worldwide and sometimes known as Britain's Roswell, can be found hereIn conjunction with the outstanding Dutch celestial cartographer Wil Tirion, I have produced two standard observing guides for amateur astronomers. 

Ian's book list on that have inspired my writings on astronomy and space

Ian Ridpath Why did Ian love this book?

Although Arthur C. Clarke is usually regarded primarily as an author of science fiction (think 2001, Rendezvous with Rama) he was also a masterful exponent of science fact. Written at a time when humans were still preparing to land on the Moon, this book opened the door to the vistas of outer space for this budding author. A man generations ahead of his time, Clarke would have been as disappointed as any at our slow rate of progress in space exploration since the Apollo Moon landings. An uplifting view of our technological future, some of it still to come, from a true visionary.

By Arthur C. Clarke,

Why should I read it?

1 author picked The Promise of Space as one of their favorite books, and they share why you should read it.

What is this book about?

"When Clarke wrote this volume in 1968, humanity stood on the brink of bursting forth from this ball of dirt into the universe. It is full of hope for the Space Age to come, and a rather sad thing to read today. Still, it's a great book, crammed with technical diagrams, astronomical photographs, and good solid science."


Book cover of UFO Sightings: The Evidence

Ian Ridpath Author Of Star Tales

From my list on that have inspired my writings on astronomy and space.

Why am I passionate about this?

I am an author, editor, lecturer, and sometime broadcaster on astronomy and space. My early interest in the possibilities of extraterrestrial life and interstellar communication led me to write my first books, Worlds Beyond (1975) and Messages from the Stars (1978). This interest also led me to investigate UFO sightings, but I soon realized that their explanation lies in human misperception and not ETs. My investigation and explanation of the famous Rendlesham Forest UFO case of December 1980, widely regarded as one of the top-ten cases worldwide and sometimes known as Britain's Roswell, can be found hereIn conjunction with the outstanding Dutch celestial cartographer Wil Tirion, I have produced two standard observing guides for amateur astronomers. 

Ian's book list on that have inspired my writings on astronomy and space

Ian Ridpath Why did Ian love this book?

Skeptical books about UFOs are rare, and this one is a particular treasure. Sheaffer, a Silicon Valley engineer, and amateur astronomer, has been documenting the UFO field since the 1970s, and continues to report on developments via his blog Bad UFOs. This book is an updated and expanded edition of his earlier work called The UFO Verdict of 1981 in which he concluded that "UFOs as real and distinct entities simply do not exist." Forty years on, nothing has emerged to change that conclusion. If you have ever wondered whether UFOs are worth taking seriously (and why scientists do not), then this thoughtful book will provide your answer.

By Robert Sheaffer,

Why should I read it?

1 author picked UFO Sightings as one of their favorite books, and they share why you should read it.

What is this book about?

Engaging and entertaining, UFO Sightings: The Evidence is the most up-to-date overview of the UFO phenomenon, a controversy that gains strength with each new report of strange happenings in the sky. Written from the skeptical perspective, and applying the scientific method to the cases explored, this book differs greatly from the proparanormal tomes widely available today.

"Most broad survey UFO books contain absolutely uncritical presentations of sensational claims," says author Robert Sheaffer. "Typically, pro-UFO books deliberately omit all facts that tend to discredit the cases."

UFO Sightings is unique because it gives the reader a broad overview of the world…


Book cover of Star Names: Their Lore and Meaning

John M. Saul Author Of What the Stork Brought: African click-speakers and the spread of humanity's oldest beliefs

From my list on the origins of humanity's earliest beliefs.

Why am I passionate about this?

As a geologist, I met and shared meals – occasionally under the stars – with individuals with strikingly different backgrounds. In time I realized that, whatever their DNA, they all shared certain beliefs, that the happy dead eventually go upward, for example, even if they start by going down or out to the horizon. Eventually, I concluded that the entire human adventure began in a single moment the day one of our forebears asked another "What shall we do about death?" and was understood. Humans have a single genetic heritage; we also have a single cultural heritage.

John's book list on the origins of humanity's earliest beliefs

John M. Saul Why did John love this book?

Allen (1838-1906) was described as a "walking encyclopedia" by people who knew him. It was only after acquiring a reprint of his great book, a decade before the internet, that my own research into ancient cosmology took off. Star Names was first published in 1899 and as Wikipedia notes "there is no direct modern equivalent." As is the case with the internet, large sections can also be plucked out and read for pleasure.

By Richard H. Allen,

Why should I read it?

2 authors picked Star Names as one of their favorite books, and they share why you should read it.

What is this book about?

Here is an unusual book for anyone who appreciates the beauty and wonder of the stars. Solidly based upon years of thorough research into astronomical writings and observations of the ancient Chinese, Arabic, Euphrates, Hellenic, and Roman civilizations, it is an informative, non-technical excursion into the vast heritage of folklore and history associated with the heavenly bodies.
From his studies of the writings of scores of ancient astronomers, the author has come up with a fascinating history of the names various cultures have given the constellations, the literary and folkloristic uses that have been made of the stars through the…


Book cover of Universe

Ian Ridpath Author Of Star Tales

From my list on that have inspired my writings on astronomy and space.

Why am I passionate about this?

I am an author, editor, lecturer, and sometime broadcaster on astronomy and space. My early interest in the possibilities of extraterrestrial life and interstellar communication led me to write my first books, Worlds Beyond (1975) and Messages from the Stars (1978). This interest also led me to investigate UFO sightings, but I soon realized that their explanation lies in human misperception and not ETs. My investigation and explanation of the famous Rendlesham Forest UFO case of December 1980, widely regarded as one of the top-ten cases worldwide and sometimes known as Britain's Roswell, can be found hereIn conjunction with the outstanding Dutch celestial cartographer Wil Tirion, I have produced two standard observing guides for amateur astronomers. 

Ian's book list on that have inspired my writings on astronomy and space

Ian Ridpath Why did Ian love this book?

I love books full of facts and figures, and for astronomers, this is one of the best. Now in its fourth edition (the first appeared in 2005), Universe (subtitled The Definitive Visual Guide) harnesses a team of expert writers with Dorling Kindersley’s designers, editors, and researchers to produce a sumptuously illustrated review of the Universe from the Earth to the Big Bang, including extensive sections on the night sky and how to view it. Dorling Kindersley’s books are natural successors to the great Reader’s Digest reference books of my childhood. If you want an encyclopedia of the Universe, this is the one to have.

By Dorling Kindersley,

Why should I read it?

1 author picked Universe as one of their favorite books, and they share why you should read it.

What is this book about?

Marvel at the wonders of the Universe, from stars and planets to black holes and nebulae, in this exploration of our Solar System and beyond.

Universe opens with a look at astronomy and the history of the Universe, using 3D artworks to provide a comprehensive grounding in the fundamental concepts of astronomy, including the basic techniques of practical astronomy.

The core of the book is a tour of the cosmos covering the Solar System, the Milky Way, and galaxies beyond our own. Explanatory pages introduce different celestial phenomena, such as galaxies, and are followed by catalogues that profile the most…


Book cover of The Science Of Aliens

David A. Aguilar Author Of Space Encyclopedia: A Tour of Our Solar System and Beyond

From my list on understanding the first science: astronomy.

Why am I passionate about this?

I am a naturalist, astronomer, space artist, and a Harvard world lecturer living in the Rocky Mountains outside of Aspen. So far, I’ve written and illustrated twelve kid’s astronomy books for National Geographic and Penguin Random House. I directed the Science Information Center at the Harvard-Smithsonian Center for Astrophysics in Cambridge Massachusetts for fourteen years then left in 2015 to join NASA’s New Horizons Mission Team becoming one of the first humans to see the planet Pluto up close and personal. I am also a Grammy nominated songwriter/musician, astrophotographer, telescope maker who enjoys scuba diving at night and occasionally has been known to parachute out of perfectly operating aircraft.

David's book list on understanding the first science: astronomy

David A. Aguilar Why did David love this book?

This marvelous book will rock and sock the fun part of your brain when it comes to the possibilities of alien life out there among the stars. The Science of Aliens provides authoritative speculation on a whole range of possibilities including bizarre alien body structures, enhanced senses, capabilities, life at the edge, alien sex, social structures, religion, and lifestyles. 

If you like captivating mental gymnastics and broad, almost humorous depictions of alien life as seen in Hollywood films and sci-fi books, then run, fly, leap, scurry, scoot, teleport or slime your way to the nearest bookstore and pick up this gem. Remember, in this universe, ALL of us are aliens!

By Clifford A Pickover,

Why should I read it?

1 author picked The Science Of Aliens as one of their favorite books, and they share why you should read it.

What is this book about?

If extraterrestrials ever landed on Earth, they would find us extremely strange. Their first intimation of our existence might well be a Super Bowl broadcast or a stray transmission from the Playboy channel. But, of course, they might seem equally strange to us. How strange? Their senses could be entirely different from ours,they might see in the infrared or hear" radio waves.What would aliens look like? An intelligent octopus-like creature is certainly plausible. What about odd numbers of limbs,a three-legged alien with three arms and three eyes? What about an entire planet of immobile, silicon-based trees" that communicate with each…


Book cover of Revelation Space

Andrew Fraknoi

From my list on science fiction books that use good astronomy.

Why am I passionate about this?

I am an astronomer and college professor who loves science fiction. For many years, I have kept a webpage recommending science fiction stories and novels that are based on good astronomy. I love explaining astronomy to non-scientists, and I am the lead author of OpenStax Astronomya free online textbook for beginners, which is now the most frequently used textbook for astronomy classes in the U.S. I actually learned English at age 11 by reading science fiction comics and then books for kids,  After many decades as a fan, I have recently realized a long-held dream and become a published SF author myself.

Andrew's book list on science fiction books that use good astronomy

Andrew Fraknoi Why did Andrew love this book?

I discovered Alastair Reynolds, who is now my favorite science fiction writer, by reading this book, which was a mind-opening experience. I especially enjoy his combining a kind of “film noir” sensibility with realistic science ideas (the latter is not surprising since he has a Ph.D. in astronomy.) 

This first novel in his series is an excellent way to delve into his marvelously imagined Universe, where humanity exists in a number of genetically modified variants, and intelligences have to contend with ancient and powerful machines that deem organic life too war-like to be permitted to live.

By Alastair Reynolds,

Why should I read it?

3 authors picked Revelation Space as one of their favorite books, and they share why you should read it.

What is this book about?

The legendary space opera that kicked off the ground-breaking, universe-spanning series.

Nine hundred thousand years ago, something wiped out the Amarantin. For the human colonists now settling the Amarantin homeworld Resurgam, it's of little more than academic interest, even after the discovery of a long-hidden, almost perfect Amarantin city and a colossal statue of a winged Amarantin. For brilliant but ruthless scientist Dan Sylveste, it's more than merelty intellectual curiosity - and he will stop at nothing to get at the truth. Even if the truth costs him everything. But the Amarantin were wiped out for a reason, and that…


Book cover of If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY?: Seventy-Five Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life

Fernando J. Ballesteros Author Of E.T. Talk: How Will We Communicate with Intelligent Life on Other Worlds?

From my list on humanistic answers from the skies.

Why am I passionate about this?

I am an astronomer and astrobiologist, and my field of work leads me to wonder about the origin of life in the universe and how scientific discoveries (and especially those related to space) affect culture, people's lives, or even civilization itself. All of the books listed here focus precisely on answering some of these concerns, which is why I find them extremely interesting.

Fernando's book list on humanistic answers from the skies

Fernando J. Ballesteros Why did Fernando love this book?

This book tries to answer one of those vital questions that we have asked ourselves since we were children and that, at least in my case, continues to be part of my interest as an adult: Why don't we have any real proof of the existence of other civilizations beyond Earth?

This question has its own name: the Fermi Paradox, the apparent contradiction between the high probability of extraterrestrial life and the lack of evidence for alien civilizations. I enjoyed how the author, Stephen Webb, goes over all the possible solutions to this paradox that science has been able to imagine. In the end, Webb gives his own solution (which does not match mine).

By Stephen Webb,

Why should I read it?

1 author picked If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY? as one of their favorite books, and they share why you should read it.

What is this book about?

Given the fact that there are perhaps 400 billion stars in our Galaxy alone, and perhaps 400 billion galaxies in the Universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. The sheer enormity of the numbers almost demands that we accept the truth of this hypothesis. Why, then, have we encountered no evidence, no messages, no artifacts of these extraterrestrials?

In this second, significantly revised and expanded edition of his widely popular book, Webb discusses in detail the (for now!) 75 most…


Book cover of Alien Oceans: The Search for Life in the Depths of Space

Bonnie J. Buratti Author Of Worlds Fantastic, Worlds Familiar: A Guided Tour of the Solar System

From my list on the planets and life outside the Earth.

Why am I passionate about this?

As a child I was fascinated by space, planets, and the stars. Now I am a planetary scientist who has been involved with NASA’s interplanetary missions for four decades. I am curious, passionate about space exploration and discovery, and have been in leadership roles on some of these missions. I am also passionate about communicating these discoveries to the public. Learn about the planets from an expert, an insider who was there in the thick of the action during key times and who wants to communicate this excitement to you.

Bonnie's book list on the planets and life outside the Earth

Bonnie J. Buratti Why did Bonnie love this book?

The search for life outside the Earth is NASA’s greatest quest, and this book will bring you up to speed on it. Just a few decades ago, scientists thought life arose on the Earth in shallow seas, warmed by the early sun and zapped by energy-producing lightning. The best place to look for alien life was on Mars, where bacterial life may have formed in the shallow pools that covered the young Mars, and then hunkered down in subsurface spots of Martian water and ice as these pools evaporated. Scientists now suspect life arose in warm vents deep in the Earth’s ocean. Subsurface oceans in the moons of the outer Solar System may contain similar vents that serve as breeding grounds for primitive life. Kevin Hand describes NASA’s current missions and instruments to find this life in alien oceans.

By Kevin Hand,

Why should I read it?

1 author picked Alien Oceans as one of their favorite books, and they share why you should read it.

What is this book about?

Inside the epic quest to find life on the water-rich moons at the outer reaches of the solar system

Where is the best place to find life beyond Earth? We often look to Mars as the most promising site in our solar system, but recent scientific missions have revealed that some of the most habitable real estate may actually lie farther away. Beneath the frozen crusts of several of the small, ice-covered moons of Jupiter and Saturn lurk vast oceans that may have existed for as long as Earth, and together may contain more than fifty times its total volume…


Book cover of Astrobiology: The Search for Life Elsewhere in the Universe

Mike X Cohen Author Of Linear Algebra: Theory, Intuition, Code

From my list on for people who can’t read five books on the same topic.

Why am I passionate about this?

I am an associate professor of neuroscience at the Donders Institute in the Netherlands. My research lab focuses on discovering how the brain uses electrical signaling to compute information, and transfer information across different regions of the brain. I also have a few decades of experience teaching scientific coding, data analysis, statistics, and related topics, and have authored several online courses and textbooks. I have a suspiciously dry sense of humor and insufficient patience to read five books on the same topic.

Mike's book list on for people who can’t read five books on the same topic

Mike X Cohen Why did Mike love this book?

“Are we alone?” An age-old question that we may never answer. Andrew May walks us through the scientific study of whether there might be life elsewhere in the universe, and how we might identify it. And by “scientific study,” I mean actual scientific investigations, not wishy-washy sci-fi fluff. The book is both inspiring and terrifying, because the immense distances in space and time make you realize that intelligent life is both incredibly insignificant and incredibly precious.

By Andrew May,

Why should I read it?

1 author picked Astrobiology as one of their favorite books, and they share why you should read it.

What is this book about?

Extraterrestrial life is a common theme in
science fiction, but is it a serious prospect in the real world? Astrobiology
is the emerging field of science that seeks to answer this question.

The possibility of life elsewhere in the cosmos
is one of the most profound subjects that human beings can ponder. Astrophysicist
Andrew May gives an expert overview of our current state of knowledge, looking
at how life started on Earth, the tell-tale 'signatures' it produces, and how
such signatures might be detected elsewhere in the Solar System or on the many 'exoplanets'
now being discovered by the Kepler…


Book cover of Protector

Keith Stevenson Author Of Traitor's Run

From my list on novels written from an alien perspective.

Why am I passionate about this?

Aliens have fascinated me since childhood. The idea of living on an alien planet with different biology, social structures, and ways of thinking has to be the ultimate act of imagination. Authors use aliens to highlight and interrogate aspects of humanity or to explore different ways of living, and the best alien novels invite me to inhabit the skin of an alien and open my mind to new thoughts and perspectives. As a science fiction writer, these stories inspire me to be more creative in my own flights of imagination. Here are five of the best alien science fiction novels to help you share my journey into the truly alien.

Keith's book list on novels written from an alien perspective

Keith Stevenson Why did Keith love this book?

Larry Niven (like CJ Cherryh) is a Grand Master of science fiction and no stranger to creating unique alien creatures and societies. But the Pak aliens are one of his weirdest creations of all.

I won’t spoil the surprise, but the Pak are truly unique amongst science fictional aliens, and the Hugo-nominated book–much like The Pride of Chanur–is a non-stop chase across space with the Pak demonstrating time and again that humanity is no match for them and that they could, in fact, be our deadliest threat.

I read this book many years ago, and it’s stayed with me as a great example of alien SF.

By Larry Niven,

Why should I read it?

1 author picked Protector as one of their favorite books, and they share why you should read it.

What is this book about?

A classic novel of known space

Phssthpok the Pak had been traveling for most of his thirty-two thousand years. His mission: save, develop, and protect the group of Pak breeders sent out into space some two and a half million years before . . .

Brennan was a Belter, the product of a fiercely independent, somewhat anarchic society living in, on, and around an outer asteroid belt. The Belters were rebels, one and all, and Brennan was a smuggler. The Belt worlds had been tracking the Pak ship for days—Brennan figured to meet that ship first . . .

He…


Book cover of The Promise of Space
Book cover of UFO Sightings: The Evidence
Book cover of Star Names: Their Lore and Meaning

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