Andy Weir’s Project Hail Mary is his third novel (after The Martian and Artemis), and arguably his best. In another near-future scenario, he offers hard science fiction at a human scale, full of both good science and trademark wit.
That being said, the author’s worldview and assumptions lead to some unexplored territory that could have enriched the novel. I’ll dive into that later in this article, but of course Project Hail Mary is a work of fiction, not philosophy. And it is a story well told—one I can recommend if hard sci-fi is your jam.
In particular, I highly recommend the audiobook version, narrated by Ray Porter. I’m not a huge audiobook guy, but I’d heard rave reviews of Porter’s narration. And wow! The guy not only captures the protagonist’s mental and emotional journey to a T, but he also inhabits (with an amazing range of voices) the other characters. It’s like a multi-cast production voiced by a single narrator. No wonder the audiobook production won the 2022 Audie Award for Audiobook of the Year. If you’re new to audiobooks, this one will spoil you forever!
I suspect the movie (which releases March 20, 2026) will be an inferior experience to the book or especially the audiobook. I’ll provide my thoughts on the movie in a future blog.
The Story (no spoilers yet)
Project Hail Mary begins by breaking an unwritten rule in fiction: don’t start with your protagonist waking up. Except that happens to be key to the story structure. Because astronaut Ryland Grace doesn’t even know his own name when he awakens from a coma aboard what he figures out (through his background as a scientist and middle-school science teacher) is a spaceship.
His amnesia is whittled away through vignettes of memory that serve as a parallel plot revealed in these flashbacks. It’s an effective story structure—one that leads to a significant character revelation near the book’s climax that I won’t spoil here.
What we do understand throughout the book—relying on much interior dialogue—is that Ryland knows his science. And, thanks to his school-teacher roots, he can explain it for the reader in a digestible fashion. It’s like visiting the classroom of your coolest science teacher. Well, nerdiest science teacher. Because Ryland isn’t cool at all. He’s a loner at heart who doesn’t mix well with others—even other scientists. Which makes his transition from sole survivor on his spaceship to interstellar collaborator the most enjoyable part of his character arc.
Spoilers follow!
As his amnesia lessens and his “science-it-out” prowess advances, Ryland figures out his mission and his destination. Tiny alien life is dimming the Sun, risking Earth’s devastation. Other nearby stars have also been “infected”—except Tau Ceti. Ryland and his now-deceased crewmates were dispatched to Tau Ceti to determine why that star was immune to the invaders that Ryland terms taumoeba.
In a delicious bit of irony, his ship, the Hail Mary, is powered by the same taumoeba that threaten humanity’s existence. Andy Weir does a superb job of worldbuilding with this microscopic-but-deadly alien. It lacks sharp teeth or a growl, bears no grudge against humans, and can even be useful when it’s not eating stars and killing civilizations.
Rocky Saves the Day
Yet the best of Weir’s creations is the endearing, spider-like alien Ryland meets by chance at the Tau Ceti solar system: Rocky. The piece-by-piece reveal—from Rocky’s oddly shaped ship to a dark connector tunnel—is done masterfully. How Ryland and Rocky establish communication across species and vastly different biologies is a joy to behold.
But the gem of the entire book is the friendship that develops between Ryland and Rocky. They begin as sole survivors trying to save their planets. Their journey together—not merely scientific collaboration—is what propels the story. And it what transforms Project Hail Mary from another save-the-world tale into a very intimate, often humorous, and ultimately heart-warming one.
Which is essential, given the preponderance of interior thoughts versus dialogue across the book. The only human-to-human interaction we see is via the flashbacks, and the other people Ryland interacts with tend to be fairly one-dimensional. The one exception is the mission leader, Eva Stratt, who recruited Ryland for the project. She begins as an archetypical domineering woman, but at least we get glimpses of a deeper humanity. The dialogue between Ryland and Stratt is handled well and serves to expose more of Ryland’s frailty than we see in the present-day activities aboard his ship.
Character Flaw
This leads to my biggest issue with the novel: Ryland Grace always acts as the “good guy.” There is one glaring exception I won’t spoil for you, and he does briefly wrestle with those implications, but he’s otherwise portrayed as a moral and intellectual icon. Ryland makes some honest mistakes in terms of scientific problem-solving—mistakes he always feels bad about rather than glosses over—but he’s such a science wizard that he mostly gets the solutions right. Nor does he encounter any major blow-ups in his relationship with Rocky.
In short, Ryland is too perfect.
That, and he has little personally at stake if the Earth isn’t saved. No friends or family he worries about. Even the references to his students involve a certain detachment. He mostly talks about them as a group, not as discrete people at risk if he fails at his mission to unravel the secrets of taumoeba and send that data back home.
In fact, home may be too strong a word regarding Ryland’s feelings about Earth. Other than in the most general terms, we don’t see him yearning for his old life. The ship’s food supply is a plot thread, but Ryland doesn’t pine for a specific menu from a favorite restaurant, or reminisce about a notable meal with friends. Whether that’s a character-driven choice or an omission on the author’s part, it lowers the felt stakes for Ryland making it back to Earth.
Which is not to say there’s not tension in the story. There are plenty of issues to resolve with quite inventive plot twists. But they’re mostly technical problems—including the interspecies communication ones—that test the intellect more than the heart. Again, this is where the friendship between Ryland and Rocky saves the day. Otherwise, the story would have been scientifically fascinating but ultimately dry emotionally.
Fortunately, Weir handles the climax of the story very well, with both emotional and technical beats. Rocky has changed Ryland—brought out the best in him—and that carries the crucial decisions that complete the journey.
Worldview and Unexplored Territory in Project Hail Mary
Now on to brief commentary about the story’s embedded worldview and how it takes away from the full potential of the novel.
I expected a materialistic, atheistic perspective from Andy Weir. This is common in much of mainstream science fiction going back to the 20th Century. So no surprise there. But there’s a complete lack of exploration of how a worldwide calamity would influence people of faith—or how that topic might come up between Ryland and Rocky. After all, religion is a massive part of human culture, and the characters are otherwise very inquisitive about the other’s home-world and culture.
Weir does include one fleeting side character as a Christian—of the kooky, deluded variety. But God is absent from the conversation, even as Ryland and Rocky wonder about similar biological systems (like DNA) across different worlds. Weir’s answer? A panspermia event: life seeded from the same extraterrestrial source. No mention of the possibility of a common Creator—or the notion of the divine at all.
Naturally, Weir is entitled to his opinions on God, creation, and extraterrestrial life. He’s a novelist, not a theologian. Likewise, I’m free to examine his inherent claims. The bedrock of his entire premise can be summed up in one word: evolution.
Like many real-world scientists do, Ryland Grace grants the theory of evolution supreme status, to the extent of personifying its so-called attributes. It chooses. It struggles. It “finds a way.” I won’t launch into a full critique here, but suffice to say the theory isn’t watertight. An unbiased examination shows it rests upon some shaky premises and hand-waving that stretch the definition of “scientific” (i.e., being testable, repeatable, falsifiable). And Weir conflates micro-adaptations (like bacteria developing resistance to antibiotics) with presumed macro changes from one kind of life to another.
Never mind the intractable problem of how non-life could become life to begin with. Ask distinguished atheist-evolutionist Richard Dawkins, and he’ll tell you he has no idea how life began. Even if one assumes a timescale of billions of years, statistical analysis shows that random chance is wholly insufficient to produce even the most basic lifeform. And that presumes a universe like ours that seems “finely tuned” to permit life (which is a broader complication in the materialism-versus-creationism conversation).
So why burden poor Andy Weir with carrying the water for this massive area of debate? I wouldn’t presume to do that.
However, his main characters (Ryland & Rocky) are shown as:
- Very curious
- Very capable
- Exploring the origins of life quite explicitly
Thus, the book would be even more interesting—both philosophically and from a conflict point of view—if Rocky at least challenged Ryland’s evolutionary assumptions rather than compliantly nodded his alien carapace. As Rocky might say, “How did you test your theory, question?”
Perhaps Andy Weir just isn’t curious about the scientific problems with evolution. Or he lumps those who challenge evolution (including many scientists) into the same category as flat-Earthers. Or he’s just “all in” on materialism and considers the debate closed. In any case, the heroic Ryland Grace is elevated as an admirable archetype of humanity who, ironically, is just the product of an utterly random series of events dictated by atoms bumping into each other over the eons.
Or so the story goes.
Which would make his touching friendship with Rocky nothing more than a mirage stoked by chemical reactions. Atoms don’t care about each other. They merely obey the laws of physics (and where did those originate?)
A Closing Thought
I’ll close with a reference to the book’s title: Project Hail Mary. While many might think of a last-gasp football play, the phrase is of course religious in origin.
Andy Weir has engineered a fine novel, yet did he consider the prayer behind his own title?
Hail Mary, full of grace,
The Lord is with thee;
Blessed art thou among women,
And blessed is the fruit of thy womb, Jesus.
Holy Mary, Mother of God,
Pray for us sinners,
Now and at the hour of our death.
Amen.
As the saying goes, there are no atheists in foxholes. Likewise, there are countless deathbed confessions.
If our Sun were truly being gobbled up by little space invaders, one would expect a sizeable fraction of humanity to turn to God—either with contrition or with an angry, raised fist.
Apparently that’s a hypothesis Andy Weir didn’t think about. I hope someday he might.