Who should read Project Hail Mary?

Read it if you like problem-solving stories where the science is explained clearly and the tone stays warm. Skip it if you want lyrical prose or deep character study over puzzles.

How long and how fast is Project Hail Mary?

It is a fast-paced, long read of about 476 pages, first published in 2021.

Can I borrow Project Hail Mary for free?

Often, yes. Check Libby (OverDrive) to see whether your library lends Project Hail Mary; the borrow button above searches it for you.

What should I read after Project Hail Mary?

Readers who liked it often move on to Station Eleven, Dune.

Science fiction

Project Hail Mary

by Andy Weir

4.5 out of 5, from 8,470 ratings from Hardcover readers

A man wakes alone on a spaceship with no memory and slowly pieces together that he is humanity's last hope. Solving the problem takes science, nerve and an unexpected friend.

Facts last checked 2026-10-16

First published: 2021
Pace: Fast
Length: Long
Pages: 476
Format: Standalone

Borrow free with Libby Compare prices

Read this if you like problem-solving stories where the science is explained clearly and the tone stays warm.

Skip this if you want lyrical prose or deep character study over puzzles.

The feel

Content warnings

Death

Also reported by Hardcover readers:

Medical content
Suicide
Injury/Injury detail
Drug use
Fire/Fire injury
Grief
Confinement
Alcohol
Genocide

Quick answers about Project Hail Mary

What is Project Hail Mary about?: A man wakes alone on a spaceship with no memory and slowly pieces together that he is humanity's last hope. Solving the problem takes science, nerve and an unexpected friend.
Who should read Project Hail Mary?: Read it if you like problem-solving stories where the science is explained clearly and the tone stays warm. Skip it if you want lyrical prose or deep character study over puzzles.
How long and how fast is Project Hail Mary?: It is a fast-paced, long read of about 476 pages, first published in 2021.
Does Project Hail Mary have content warnings?: Content we flag: Death.
Can I borrow Project Hail Mary for free?: Often, yes. Check Libby (OverDrive) to see whether your library lends Project Hail Mary; the borrow button above searches it for you.
What should I read after Project Hail Mary?: Readers who liked it often move on to Station Eleven, Dune.

Where to get it

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