Spoiler warning: this post explains the full ending of Solaris. If you have not finished the book, stop here and come back later.
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Quick answer: Psychologist Kris Kelvin, on a research station orbiting the planet Solaris, is visited by a copy of his dead wife Rheya, created by the planet's living ocean from his memories. After Rheya chooses to be destroyed, Kelvin decides to stay on Solaris, hoping the ocean might give her back, accepting that he will never understand it.
Quick facts
– Book: Solaris by Stanisław Lem
– First published: 1961
– Type: A science fiction novel
– Tone of the ending: Mysterious
Table of Contents
What Leads Up to the Ending
Kelvin arrives at the station and finds his colleagues behaving strangely. Each is visited by a “visitor” from their past. Rheya, who killed herself after Kelvin left her, appears.
What Happens at the End of Solaris
Kelvin first tries to get rid of Rheya by sending her away in a shuttle, but the ocean simply creates another copy. He falls in love with this new Rheya, who gradually realizes she is not human and cannot survive away from Solaris. She tries to kill herself by drinking liquid oxygen, but her body regenerates. Without telling Kelvin, she agrees to be destroyed by a device Sartorius and Snaut have built, leaving him a note. Kelvin is devastated. He flies down to the planet's surface, touches the ocean and watches it respond. He decides to stay, hoping that the ocean might bring Rheya back, while accepting that he will never understand it.
The Ending in 4 Quick Points
- Rheya chooses destruction.
- Kelvin stays.
- The ocean is unknowable.
- Kelvin hopes.
What Happens to the Main Characters
| Character | What happens to them |
|---|---|
| Kris Kelvin | Stays on Solaris |
| Rheya | Destroyed |
| Snaut | Colleague |
| Sartorius | Colleague |
What the Ending Means
The ending explores the limits of human understanding.
Other Ways to Read the Ending
Readers compare the novel with the Tarkovsky and Soderbergh films, which focus more on love and grief, while Lem's book is equally about the impossibility of understanding an alien mind.
Themes the Ending Brings Together
Memory. The visitors come from memory.
Contact. Alien contact.
Love. Kelvin's love.
Is the Ending Happy or Sad?
Most readers describe the ending of Solaris as mysterious. How you feel about it usually depends on what you hoped for the characters and what you expected Stanisław Lem to do with the story, so it is worth asking friends how they felt before you compare notes.
Who Will Like This Ending
Readers who enjoy endings that are mysterious will find a lot to talk about here. If you prefer every thread tied up neatly, it helps to know in advance how Stanisław Lem closes the story, which is exactly why many readers look it up. Either way, the final chapters reward a second look once you know where everything is heading, because small details from the middle of the book start to matter. If you are reading with a group, agree beforehand whether everyone has finished, so nobody has the last chapters spoiled.
Book Versus Adaptation
The 1972 Tarkovsky film and the 2002 Soderbergh film both change the ending.
Discussion Questions About the Ending
If you are reading Solaris with a book club or a friend, these questions work well once everyone has finished:
- Did the ending surprise you, or had you seen it coming from the first chapters?
- What does the final scene say about memory, and do you agree with Stanisław Lem's view?
- Which character made the most important choice in the last part of the book, and was it the right one?
- How would the story feel if it had ended one chapter earlier or one chapter later?
- Does the ending leave you hopeful about the characters, or do you worry about what comes next?
- Would you describe the ending as mysterious, or would you choose a different word?
How to Read the Final Chapters Again
- Compare the opening with the close. Look at how the first chapter introduces memory and how the ending answers it.
- Track each final choice. The table above shows where every main character ends up, so ask which of those outcomes was earned.
- Notice what Stanisław Lem leaves unsaid. Gaps in the last pages are often deliberate, and they are where most of the debate about the ending begins.
- Listen for echoes. Images, phrases or settings from earlier in Solaris often return in the final scene with a new meaning.
Questions to Ask Yourself After Finishing
- Was the ending of Solaris earned by what came before it, or did it feel sudden?
- Which character's final moment affected you most, and why?
- If you could change one thing about the last chapters, what would it be?
- Did the ending change how you think about the opening pages?
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Books to Read After Solaris
- The Left Hand of Darkness by Ursula K. Le Guin
- Annihilation by Jeff VanderMeer
Related: Solaris by Stanisław Lem: Summary and Key Takeaways
Frequently Asked Questions
What happens at the end of Solaris?
Psychologist Kris Kelvin, on a research station orbiting the planet Solaris, is visited by a copy of his dead wife Rheya, created by the planet's living ocean from his memories. After Rheya chooses to be destroyed, Kelvin decides to stay on Solaris, hoping the ocean might give her back, accepting that he will never understand it.
Is the ending of Solaris happy or sad?
Most readers call it mysterious.
What does the ending of Solaris mean?
The ending explores the limits of human understanding.
Is the ending of Solaris the same in the adaptation?
The 1972 Tarkovsky film and the 2002 Soderbergh film both change the ending.
Who wrote Solaris and when was it published?
Solaris was written by Stanisław Lem and first published in 1961.
Is Solaris worth reading if I already know the ending?
Yes, especially if you enjoy science fiction novels. Knowing the ending can make a first read richer, because you notice how Stanisław Lem prepares for it from the opening chapters.
Should I read Solaris before reading the ending explained?
Yes, if you plan to read it, because this post gives away the whole ending.