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Project Hail Mary: A Novel



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Editorial Reviews

Amazon.com Review

An Amazon Best Book of May 2021: As Ryland Grace awakens from a coma, he doesn’t know who he is or where he is, but a mix of calculations, deductions, and slowly returning memories enlightens him: He’s a junior high school science teacher on a small space ship. His mission? Save Earth. As in The Martian, Weir makes science and problem solving not only cool but absolutely essential to survival, delivering an electrifying space adventure that yanks at both the gut and the heart strings. Readers will absorb facts about gravity and heavy metals even as Grace races against the clock and builds an unexpected partnership while hurtling through the cold depths of space. —Adrian Liang, Amazon Book Review


“A crowd-pleaser on the grandest scale.”The Boston Globe

“An engaging space odyssey.”The New York Times Book Review


“Funny, well plotted, and full of surprises.”The Guardian

“A joy to read.”Locus

“The ultimate page-turner.”Daily Mail

“Weir spins a space yarn in a way only he can. Fans of his earlier works won’t be disappointed.”Newsweek

“Andy Weir proves once again that he is a singular talent. Project Hail Mary is so fascinating and propulsive that it’s downright addictive. From the first page as Ryland wakes up not knowing who or where he is, I was hooked.”—Taylor Jenkins Reid, New York Times bestselling author of Daisy Jones & The Six

“Reading Project Hail Mary is like going on a field trip to outer space with the best science teacher you’ve ever had—and your class assignment is to save the world. This is one of the most original, compelling, and fun voyages I’ve ever taken.”—Ernest Cline, #1 New York Times bestselling author of Ready Player One

“Two worlds in peril, a competent (but flawed and human) man, a competent alien, unending scientific puzzles to unravel, with humanity itself at risk, this one has everything fans of old school SF (like me) love. If you like a lot of science in your science fiction, Andy Weir is the writer for you.”—George R. R. Martin, New York Times bestselling author of A Game of Thrones

“I loved The Martian, but I actually find Project Hail Mary to be Mr. Weir’s finest work to date. It’s somehow both exciting, yet also personal. I’m constantly amazed by how well Mr. Weir continues to write wonderfully accessible science fiction without compromising either the science or the fiction.”—Brandon Sanderson, New York Times bestselling author of the Stormlight Archive series

“Brilliantly funny and enjoyable . . . one of the most plausible science fiction books I’ve ever read.”—Tim Peake, ESA astronaut and internationally bestselling author of Limitless

“Thrilling doesn’t even begin to describe Project Hail Mary, which is undisputedly the best book I’ve read in a very, very long time . . . I cheered, I laughed (a lot), I cried, and when the twist arrived and the book revealed its true target, my jaw hit the floor. Mark my words: Project Hail Mary is destined to become a classic.”—Blake Crouch, New York Times bestselling author of Recursion and Dark Matter

“Readers may find themselves consuming this emotionally intense and thematically profound novel in one stay-up-all-night-until-your-eyes-bleed sitting. An unforgettable story of survival and the power of friendship—nothing short of a science fiction masterwork.”—Kirkus Reviews (starred review)

From the Publisher

A lone astronaut. An impossible mission. An ally he never imagined. andy weir;the martian;scifi

“Destined to become a classic” Blake Crouch; the martian;gifts for dad;books for nerds;scifi book

“A novel that would have delighted Robert A. Heinlein and Isaac Asimov” George R. R. Martin

“Weir’s finest work to date” Brandon Sanderson;the martian;gifts for dad;books for nerds

Additional information




Ballantine Books May 4 2021

Publication date

May 4 2021



File size

12072 KB



Screen Reader


Enhanced typesetting




Word Wise


Print length

482 pages


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10 reviews for Project Hail Mary: A Novel

  1. Nathan Ownbey

    No one’s talking about the elephant in the roomI’m half way through the book and I’m super annoyed with two aspects of the author’s approach. First, he gets preachy about global warming, which is not a thing one does when one wants to engage an audience…”And just like that another climate denier is born.” Can he be more condescending and dismissive?To be frank, I believe in climate change. I believe the climate changes every three months (roughly); they’re called seasons. What I don’t believe in is soft science and doomsday predictions based on data that’s easily manipulated by activists to say anything they want.The second problem I have with the book so far is that it reads too much like the The Martian, but without the emotion. There’s no reason to like or dislike the characters beyond the superficial aspects of their personalities. Everyone is two-dimensional. The main protagonist spends his days dodging his emotions, and every supporting character on Earth is a stereotype–without enough personality for me to care about any of them.Maybe things will get better as I continue to read, but only if the author puts away his soapbox and get’s back to story-telling.

  2. Nick

    Amazing. Wonderful. Excellent.I don’t even remember pre-ordering this book. It just showed up in my Kindle app this morning. So I decided to read the first chapter before starting work. Four hours later, I can finally put the book down since I’m done.”The Martian” was a great story. “Artemis” was a great story. This one is better than either of those. If you like science fiction with actual science, this is for you. If you like stories with interesting, well developed characters, this also has that. If you want excitement and a thrilling plot, here you go. If you want romance and sex, well, there you’re completely out of luck. But if that was the kind of book you wanted I doubt you’d be reading this review anyway. Speaking of, why *are* you still reading this review? Go read the book!! It’s way better than this.

  3. science writer

    Three and a half starsBased on all the rave reviews, I had high hopes for this book. It’s certainly a couple of notches above other science fiction novels I’ve read lately (all of them with rave reviews). If Mr. Weir’s editors had leaned on him to cut 150 pages out of the text, this would have been a stronger novel.PROS:1. The characters are individualized and (mostly) likeable. It’s really nice to have a male protagonist in a sci fi book who’s compassionate, caring, and human.2. Plot twists and turns kept me reading in spite of some long tedious sections.3. Alien life forms are creatively and imaginatively rendered.4. A bit of humor here and there helped enliven the story.CONS:1. The author is mainly concerned with engineering solutions to survival problems–one after the other after the other. Some of these are exciting, but there were just too many.2. The plot drags on and on as one technical problem after another takes center stage. If you’ve been dealing with computer, electrical or mechanical problems in your own life, you might find the endless series of equipment disasters a bit frustrating to read about.

  4. Mr. Doug

    I’ll keep it simple.This book is simply outstanding. There you go. A 5 word review…but I’m not wrong.

  5. Majst0r

    Andy does it again!A spiritual sequel to The Martian that had me grinning throughout the entire book.Made my inner nerd squeal with delight on many occasions.Has everything I ever wanted in a sci-fi book, just didn’t realize it until now.Read it. That is all.

  6. AvidReader

    Stop reading this review. Read “Project Hail Mary”.A previous reviewer said: ‘”The Martian” was a great story. “Artemis” was a great story. This one is better than either of those ‘. WRONG! This one is MUCH better than either of those! Instant classic.If you mixed Asimov’s “The Gods Themselves” and Heinlein’s “Citizen Of The Galaxy” and added in a few gallons of Clarke and Niven it would be like this. I’d write more, but I’m off to re-read the novel.

  7. Serenity Base

    Well, there’s some good and some not so good hereThere is some pretty clever science here, and a lot of sophomoric fantasy about saving the world with sacrifice and universal cooperation that must have been absorbed from some over-zealous Sunday School teacher.We have this interstellar infection that eats the energy of the sun and causes it to get dimmer. We have to save the world from an imminent ice age so we scoop up some of this amazing stuff and figure out that it absorbs, and can be made to emit, incredible amounts of energy. Hey, I have an idea! Let’s use it to power a star ship to near light speed! We’ll build the ship by utilizing universal love, cooperation and sheer human ingenuity and send some suicidal humans to Tau Ceti to figure why that star isn’t getting sick, although also infected. (Well, one of them isn’t suicidal but we bully him into going anyway.)Wait!! We have a source of amazing amounts of energy and we use it to send our two-and-a-half heroes off to save the world? What about using all that incredible love, cooperation, ingenuity and boundless energy to keep the earth warm while we figure out how to kill the bug? Well, that won’t fit our little trolley-car moral dilemma plot, will it? Can’t use that.

  8. NXD

    JuvenileI am surprised by all the rave reviews. While I really enjoyed Andy Weir’s “The Martian”, I thought the writing in this book was very juvenile. Fun/interesting storyline, but the quality of the writing is so weak that I won’t be recommending this to any of my friends.

  9. Stuart

    Andy Weir does it again!I received the new book today with the intention of rationing the pages so I didn’t binge it in one session. So I binged it in one session. Andy has a knack for totally engrossing hard science based stories that make you keep on turning pages to find out how the protagonists get out of the last big mess he got them into. And Mr Weir doesn’t disappoint! There’s at least one plot point that he admits is a stretch… but going through the story is educational as much as it is exciting. If I ever get called upon to heroically save the world from an invasive interstellar infection I’m sure I could deliver… Now I need the film to get made so I can enjoy the whole thing afresh.

  10. Karen Campbell

    Science geek heaven!If you liked the Martian, you’ll love this. Ryland Grace wakes up on a spacecraft with no idea how or why he is there-or even who he is.He has to work out why he’s there, and what he has to do, from scratch. And then work miracles. Or in the words of Mark Witney in the Martian, ‘science the s*** out of it’.Written in a similar style to the Martian, with sections alternating between Ryland-on-Earth and Ryland -in-Space, it’s hard not to picture Matt Damon as Ryland, but though they share the same love of science trivia, and self-deprecating humour, they are very different.There’s loads of geeky science as he McGyvers his way from one situation to another. Maybe a little too much if you’re not a science nerd or sci-fi fanatic but I loved it.I loved the quirky characters of all the ‘supporting actors’ (This is so definitely going to be a film!), especially Rocky. Oh, Rocky! Just… read it, ok?

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