Here are 51 books that An Introduction to Planetary Defense fans have personally recommended if you like An Introduction to Planetary Defense. Book DNA 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 Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars

Olivia Campbell Author Of Sisters in Science: How Four Women Physicists Escaped Nazi Germany and Made Scientific History

From my list on the history of women in science.

Why am I passionate about this?

I thought my scientific career peaked in 6th grade when I won the science fair since soon after, all my spare time went to ballet. In college, a broken foot prompted a shift from dance to arts journalism, and then an unplanned pregnancy, complicated birth, and postpartum depression prompted a shift to writing about women’s health. From this, I branched out to various types of science and history, always through the lens of feminism. As an author and journalist, my job is to be professionally curious; I’m always asking why, how, and where: Why are things the way they are? How did they get that way? And where are the women?

Olivia's book list on the history of women in science

Olivia Campbell Why Olivia loves this book

Dava Sobel is the unquestionable queen when it comes to writing the history of women in science. You can’t go wrong in choosing anything she’s written, but I particularly enjoyed this group portrait of the women hired as “human computers” at the Harvard Observatory in the late 1800s to interpret astronomical data and observations collected by the male astronomers.

While some of these women were trained scientists, many were simply wives, sisters, or daughters of the Harvard astronomers. Sobel deftly shows how, when given a chance, women were capable of incredible scientific inquiry. I love all of the vivid scenes Sobel recreates and how she is able to bring these women to life so eloquently. 

By Dava Sobel ,

Why should I read it?

6 authors picked The Glass Universe as one of their favorite books, and they share why you should read it.

What is this book about?

From #1 New York Times bestselling author Dava Sobel, the "inspiring" (People), little-known true story of women's landmark contributions to astronomy

A New York Times Book Review Notable Book

Named one of the best books of the year by NPR, The Economist, Smithsonian, Nature, and NPR's Science Friday

Nominated for the PEN/E.O. Wilson Literary Science Writing Award

"A joy to read." -The Wall Street Journal

In the mid-nineteenth century, the Harvard College Observatory began employing women as calculators, or "human computers," to interpret the observations their male counterparts made via telescope each night. At the outset this group included the…


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Book cover of December on 5C4

December on 5C4 by Adam Strassberg,

Magical realism meets the magic of Christmas in this mix of Jewish, New Testament, and Santa stories–all reenacted in an urban psychiatric hospital!

On locked ward 5C4, Josh, a patient with many similarities to Jesus, is hospitalized concurrently with Nick, a patient with many similarities to Santa. The two argue…

Book cover of The Reinvention Of Science: Slaying The Dragons Of Dogma And Ignorance

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 Fernando loves this book

I like this book because it challenges conventional scientific thinking, advocating for a more open-minded and exploratory approach to scientific inquiry.

I find it interesting because it delves into various scientific disciplines, from physics to biology, highlighting instances where entrenched dogma and ignorance have hindered progress. It argues for the necessity of questioning established paradigms and embracing curiosity-driven research to foster genuine innovation.

As I’m interested in the intersection of philosophy, history, and science I find this book very compelling, as it offers fresh perspectives on how scientific breakthroughs occur and the importance of intellectual humility in the pursuit of knowledge.

By Bernard J T Jones , Vicent J Martinez , Virginia Trimble

Why should I read it?

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

What is this book about?

Throughout the history of science, different thinkers, philosophers and scientists postulated the existence of entities that, in spite of their not being visible or detectable in their time, or perhaps ever, were nevertheless useful to explain the real world. We started this book by looking at a handful of these entities. These included phlogiston to account for fire; the luminiferous ether for propagation of radiation; the homunculus to provide for heredity; and crystalline spheres to carry the wandering planets around the earth. Many of these erroneous beliefs had held up progress, just as dragons drawn on the edges of a…


Book cover of The Starflight Handbook: A Pioneer's Guide to Interstellar Travel

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 Fernando loves this book

One of my favorite topics is space exploration and the future of humanity on other stars. Will we ever be able to travel to Proxima Centauri (the closest star) and settle there? Is this type of interstellar travel feasible? The book is a dose of reality on this matter, exploring the possibilities and challenges of interstellar travel.

The book delves into propulsion methods, spacecraft designs, and the potential for human exploration beyond our solar system. The result is, in my point of view, an optimistic book that allows us to dream of a future among the stars.

By Eugene F. Mallove , Gregory L. Matloff ,

Why should I read it?

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

What is this book about?

The Starflight Handbook A Pioneer's Guide to Interstellar Travel"The Starflight Handbook is an indispensable compendium of the manyand varied methods for traversing the vast interstellar gulf--don'tleave the Solar System without it!" --Robert Forward "Verysensible, very complete and useful. Its good use of references andtechnical 'sidebars' adds to the book and allows the nontechnicaltext to be used by ordinary readers in an easy fashion. I certainlywould recommend this book to anyone doing any thinking at all aboutinterstellar flight or the notion of possibilities of contactsbetween hypothetical civilizations in different stat systems."--Louis Friedman Executive Director, The Planetary Society TheStarflight Handbook is the…


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Book cover of Retrieving the Future

Retrieving the Future by Randy C. Dockens,

Stealing technology from parallel Earths was supposed to make Declan rich. Instead, it might destroy everything.

Declan is a self-proclaimed interdimensional interloper, travelling to parallel Earths to retrieve futuristic cutting-edge technology for his employer. It's profitable work, and he doesn't ask questions. But when he befriends an amazing humanoid robot,…

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 Fernando loves 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 Gust Front

B.K. Bass Author Of What Once Was Home

From my list on ordinary people surviving the extraordinary.

Why am I passionate about this?

I lived in small towns with “ordinary” people most of my life, so books where people from small towns contend with situations beyond the ordinary fascinate me. I also served in the US Army as a nuclear, biological, and chemical operations specialist and am a military history buff, so anything with a military spin is all that more engaging for me and I developed a morbid fascination for just how easy it would be for us to end civilization as we know it. Therefore, military science fiction and post-apocalyptic fiction are among my favorite genres. 

B.K.'s book list on ordinary people surviving the extraordinary

B.K. Bass Why B.K. loves this book

Parts of Gust Front hit home. I read this while living in the Appalachians, so seeing Cally preparing for an invasion in a remote valley in Georgia, and the subsequent fighting that takes place in and around the Appalachians, struck a nerve with me. If the worst happened, up to and including the alien invasion depicted here, would the mountains be the best place to hold out and resist? The scope of the novel covers many settings, including other familiar ones like Washington D.C., all of which ground the speculative premise of an alien invasion in a story that feels very real; something that any of us could be forced to live through.

Book cover of The Star Wars Trilogy

Randy C. Dockens Author Of Myeem

From my list on science fiction stories of amazing worlds.

Why am I passionate about this?

I’ve always been fascinated by science fiction and by Biblical Scripture. That may seem dichotomous to some, but not to me. I have a passion for science and for Scripture because both bring understanding about our world from the microcosm to the macrocosm. My writings are a mixture of science and mystery with a science fiction feel and a Christian perspective. I like stories that show how truth arises even from the dark, confusing, and ambiguity of life to help one discover something about God they may not have considered before, and at the same time enjoy a fun, fast-paced, and exciting journey as they read.

Randy's book list on science fiction stories of amazing worlds

Randy C. Dockens Why Randy loves this book

This first came out just a few months prior to the first movie in 1977 and I still remember sitting in my dorm room reading every word with great expectation of how it would look in the coming movie. I had the same feeling reading it as I did when I first read Dune. A totally different story, but great world building.

By George Lucas , Donald Glut , James Kahn

Why should I read it?

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

What is this book about?

Luke Skywalker dreamed of adventures out among the stars and alien worlds. But when he intercepted a message from a beautiful captive princess, he got more than he had bargained for—and that was how the adventure of his life began. . . .


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Book cover of What Walks This Way: Discovering the Wildlife Around Us Through Their Tracks and Signs

What Walks This Way by Sharman Apt Russell,

Nature writer Sharman Apt Russell tells stories of her experiences tracking wildlife—mostly mammals, from mountain lions to pocket mice—near her home in New Mexico, with lessons that hold true across North America. She guides readers through the basics of identifying tracks and signs, revealing a landscape filled with the marks…

Book cover of Old Man's War

Joey Thomas Author Of The Bovine Cul-de-sac

From my list on dystopian and utopian worlds.

Why am I passionate about this?

I was introduced to the paranormal and unknown by my father. He was open to all possibilities. I loved being shocked, awed, and traumatized by the depths of dystopia and the heights of Utopian Imagination! I think, because we all live somewhere in between, flowing up and down as life experiences us, riding us ever onward!

Joey's book list on dystopian and utopian worlds

Joey Thomas Why Joey loves this book

I love not knowing anything about a book and finding myself turning from page to page, ever more excited to be a part of the adventure.

This alternate end of life leaves me wondering, why not? Though I look forward to a peaceful Galactic future, this one sure is fun (from the reader's perspective)!

By John Scalzi ,

Why should I read it?

12 authors picked Old Man's War as one of their favorite books, and they share why you should read it.

What is this book about?

Perfect for an entry-level sci-fi reader and the ideal addition to a veteran fan’s collection, John Scalzi's Old Man’s War will take audiences on a heart-stopping adventure into the far corners of the universe.

John Perry did two things on his 75th birthday. First he visited his wife's grave. Then he joined the army.

The good news is that humanity finally made it into interstellar space. The bad news is that planets fit to live on are scarce-and aliens willing to fight for them are common. The universe, it turns out, is a hostile place.

So: we fight. To defend…


Book cover of Zoe's Tale

Dan Rice Author Of Dragons Walk Among Us

From my list on YA fantasy and sci-fi with diverse perspectives.

Why am I passionate about this?

As an author of young adult fantasy and science fiction, I’ve read many books that fall within that rubric. This list captures the most exciting young adult novels I’ve read over the past few years. All have aspects of storytelling and themes I strive to capture in my writing. One thing I love about the young adult genre is the characters go on an adventure full of excitement and danger. The adventure is a metaphor for growing up. So if reads chock-full of death-defying odds, mystery, wonder, and a sprinkling of romance are your jam, the books in this list are for you.

Dan's book list on YA fantasy and sci-fi with diverse perspectives

Dan Rice Why Dan loves this book

Scalzi transports us to his ever-exciting Old Man's War universe for a retelling of the novel The Last Colony from a teen's perspective. Aliens, adventure, and young love abound in Zoe's Tale, a story sure to delight Scalzi fans and is an excellent entry point for young adult readers interested in his brand of witty sci-fi.

With Zoe's Tale, Scalzi demonstrates one key to a compelling story is a fantastic protagonist. Zoe is just that. She is engaging, stubborn, snarky, a true friend, an angsty teen, and brave. Readers who enjoy Scalzi's clever prose will find the fact Zoe's Tale is a retelling of The Last Colony immaterial. That's how captivating a character Zoe is.

By John Scalzi ,

Why should I read it?

1 author picked Zoe's Tale as one of their favorite books, and they share why you should read it.

What is this book about?

Hard-core, fast paced science fiction, John Scalzi's Zoe's Tale is the fourth in The Old Man's War series.

She won't go down without a fight.

It's not every day you up sticks and move to another world. But then, Zoe Boutin-Perry's life has never been ordinary. She's the adopted teenage daughter of two former super-soldiers. She's also a holy icon to a race of alien warriors who track her every move. So she's used to the quirks of being a human in space.

However, this time something's different. Betrayed by the authorities, Zoe - along with her parents and fellow…


Book cover of Victories Greater Than Death

Dan Rice Author Of Dragons Walk Among Us

From my list on YA fantasy and sci-fi with diverse perspectives.

Why am I passionate about this?

As an author of young adult fantasy and science fiction, I’ve read many books that fall within that rubric. This list captures the most exciting young adult novels I’ve read over the past few years. All have aspects of storytelling and themes I strive to capture in my writing. One thing I love about the young adult genre is the characters go on an adventure full of excitement and danger. The adventure is a metaphor for growing up. So if reads chock-full of death-defying odds, mystery, wonder, and a sprinkling of romance are your jam, the books in this list are for you.

Dan's book list on YA fantasy and sci-fi with diverse perspectives

Dan Rice Why Dan loves this book

I was blown away by how good Victories Greater Than Death is. It reminds me of the original Star Trek with its optimism and inclusiveness. Charlie Jane Anders puts inclusiveness front and center with the sheer diversity of her characters in ethnic origin, neurodiversity, and LGBTQA+ identification. This is done brilliantly in a manner that is in your face, lighthearted, touching, and nuanced. All this is accomplished without sacrificing the yarn's sci-fi suave.

The protagonist is Tina, a teenage girl destined to transform into an alien superhero. Her story thrums with fantastical adventure while exploring questions of identity and purpose with gravitas. I explore similar themes in my writing and hope I handle them with the aplomb Charlie Jane Anders does.

By Charlie Jane Anders ,

Why should I read it?

1 author picked Victories Greater Than Death as one of their favorite books, and they share why you should read it. This book is for kids age 13, 14, 15, and 16.

What is this book about?

Outsmart Your Enemies. Outrun the Galaxy.

“Just please, remember what I told you. Run. Don’t stop running for anything.”

Tina never worries about being 'ordinary'--she doesn't have to, since she's known practically forever that she's not just Tina Mains, average teenager and beloved daughter. She's also the keeper of an interplanetary rescue beacon, and one day soon, it's going to activate, and then her dreams of saving all the worlds and adventuring among the stars will finally be possible. Tina's legacy, after all, is intergalactic--she is the hidden clone of a famed alien hero, left on Earth disguised as a…


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Book cover of The Bridge: Connecting The Powers of Linear and Circular Thinking

The Bridge by Kim Hudson,

The Bridge provides a compassionate and well researched window into the worlds of linear and circular thinking. A core pattern to the inner workings of these two thinking styles is revealed, and most importantly, insight into how to cross the distance between them. Some fascinating features emerged such as, circular…

Book cover of Ciaphas Cain: Hero of the Imperium

Andrew Claydon Author Of The Simple Delivery

From my list on fantasy and sci-fi to make you laugh.

Why am I passionate about this?

For me the best fantasy and sci-fi is made up of many themes. Take one of my favorite fantasy movies, Willow. It has heart and comedy but also drama, action, and high stakes. This is something that I want from my writing. I want the reader to laugh, and a few paragraphs later be gasping as the main character faces mortal peril. With the very best books, you get taken on a roller coaster of emotional responses. As a UK fantasy author, my goal is to make sure that you put my books down only when you absolutely have to, which includes falling asleep holding them because you’ve stayed up too late reading.

Andrew's book list on fantasy and sci-fi to make you laugh

Andrew Claydon Why Andrew loves this book

Nothing about the Warhammer 40,000 universe says ‘funny’. The fact that it’s fans call it the ‘grimdark’ is a proud testament to this. I’ve read a lot of Warhammer books, but was surprised when I came across this series. It follows Ciaphas Cain, a Commissar who is trying to survive and find the cushiest job for himself in a universe of constant war, yet somehow, he constantly ends up being the hero.

This book really opened my eyes to the fact that you can humor even in the grittiest settings, and that just because a book is funny, it doesn’t mean it can’t be action-packed and have high stakes. Much of the humor comes from Cain’s futile attempts to avoid any sort of combat and save his own skin.

By Sandy Mitchell ,

Why should I read it?

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

What is this book about?

The first three action-packed adventures of Commissar Ciaphas Cain, and his malodorous aide Jurgen are collected together into one amazing volume. His brand of sarcasm and self-preservation are a hit with Black Library fans and provide a unique counterpoint to the usual darkness of the Warhammer 40,000 universe.


Book cover of The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars
Book cover of The Reinvention Of Science: Slaying The Dragons Of Dogma And Ignorance
Book cover of The Starflight Handbook: A Pioneer's Guide to Interstellar Travel

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5 book lists we think you will like!

Interested in space warfare, extraterrestrial life, and space horror?

Space Warfare 50 books
Space Horror 31 books