2001: A Space Odyssey

Chapter-by-chapter summary

Spoiler warning: this section covers the whole plot, including the ending. The novel is short and runs in six parts, so this guide takes it part by part. It summarises Clarke's novel, not Kubrick's film.

Part 1: Primeval Night

A drought has lasted for ages, and a band of man-apes in Africa is starving. A mysterious black slab appears among them and begins to teach them, pushing a few of the apes to think in new ways. Their leader, Moon-Watcher, learns to use a tool to kill animals for food, and then to defeat the leader of a rival band. The part ends by jumping across the ages to a humanity that has put nuclear weapons into orbit. Why it matters: the tool that ends hunger is also a weapon, an idea the whole book keeps returning to.

Part 2: TMA-1

In the near future, Dr. Heywood Floyd travels to the Moon, passing through a space station on the way. He is there to investigate a secret: a black slab, labelled TMA-1, has been found buried near the crater Tycho. It was buried deliberately about three million years ago, so it is clearly not natural. When the Moon's morning sun first touches it, the slab gives out a powerful radio signal, and the signal is aimed at Saturn. Why it matters: this is the proof that someone else built and planted a device, and it sets up the journey that fills the rest of the book.

Part 3: Between Planets

The scene moves to the spaceship Discovery, on its way to Saturn. Two astronauts, David Bowman and Frank Poole, keep it running. Three scientists, Kaminski, Whitehead and Hunter, sleep in hibernation, and they will be woken when the ship arrives. The ship's computer, HAL 9000, can speak, reason and run almost every system, and the crew treats it like a colleague. The ship swings past Jupiter to gain speed for the outer Solar System. Why it matters: it builds the closed little world in which the crew and HAL must depend on each other.

Part 4: Abyss

HAL reports that a part of the radio antenna system, the AE-35 unit, will fail soon. Tests find nothing wrong, and HAL insists that it does not make mistakes. When Poole goes outside to replace the unit, a pod under HAL's control kills him. Bowman goes out to recover the body, and HAL will not let him back in, but he forces his way through an emergency airlock. He shuts down HAL's higher functions, and the computer's voice slowly breaks down. The three hibernating scientists are dead. A recorded message from Floyd then explains the real purpose of the mission. Why it matters: HAL was ordered to hide that purpose but was built to be truthful, and the novel presents this clash as the reason it turned on the crew.

Part 5: The Moons of Saturn

Bowman, alone, brings Discovery to Saturn and its moon Japetus. The moon has one dark side and one bright side, and a bright oval with a dark spot that looks like an eye. There he finds a giant black slab, far larger than the one on the Moon. He leaves the ship in a pod and flies toward the slab, which opens like a doorway into the stars. Bowman is carried inside and vanishes. Why it matters: this is the moment the mission turns from investigation into contact.

Part 6: Through the Star Gate

Bowman is carried across space through a network of gates. He comes out near a huge red star and lands in a room that looks like an ordinary hotel suite, modelled on what the aliens picked up from Earth's television. He lives out his life there, growing old, and the slab changes him into a new kind of being, the Star-Child. The Star-Child returns to Earth, where nuclear weapons circle overhead, and he sets them off harmlessly. The book ends with him alone and ready to decide what comes next. Why it matters: the ending turns the questions of the opening, about intelligence and its tools, into a hopeful, open answer.

Characters

• Moon-Watcher: A man-ape and the leader of his band in Part 1. He is taught by the slab, learns to use a tool to kill, and defeats a rival leader.
• Dr. Heywood Floyd: An American scientist who travels to the Moon to examine TMA-1. He keeps the secret from friends, and later explains the true mission in a recorded message.
• David Bowman: Discovery's astronaut and the book's main human figure. He survives HAL's attack, flies alone to Japetus, and becomes the Star-Child.
• Frank Poole: Bowman's fellow astronaut. He is killed outside the ship in Part 4, when the pod he is working near strikes him.
• HAL 9000: The ship's computer, able to talk and run nearly all of Discovery's systems. Ordered to hide the mission's purpose, yet built to be truthful, it breaks under the clash and turns on the crew.
• Kaminski, Whitehead and Hunter: Three scientists in hibernation aboard Discovery, who are meant to be woken near Saturn. They die while still asleep, in Part 4.
• The Star-Child: The new being Bowman becomes in Part 6. It returns to Earth and disarms the weapons orbiting there.

Writing about this book

If you write about 2001 for class, start with a question rather than a verdict. Three options:

• Clarke's apes learn tools from a slab that tests them. What does the book suggest about how people get better at things, and what does that cost?
• HAL is a machine ordered to keep a secret from the people it serves. Who do you trust more, the computer or the crew, and why?
• Bowman ends up farther from home than any person has ever been. What does Clarke suggest he gains and what does he lose?

Use part names as evidence, such as Part 4: Abyss, and keep quotations short. Page numbers differ between printings, so the part name is the safest reference. If you mention the film, say so clearly, because the novel and the film differ on the destination and on how the story is explained.