# Sphere

**Author(s):** Jacques Polanis, Michael Crichton
**Unpaid SageChimp rating:** insufficient data (0 unpaid reviews; need 5)
**Verdict JSON:** https://www.sagechimp.com/books/sphere/verdict.json
**Genres:** psychology, time-travel-sf, middle-grade, literary-fiction, sci-fi
**Pages:** 416
**Publisher:** Pocket
**Published:** Mon Jan 31 2005 00:00:00 GMT+0000 (Coordinated Universal Time)
**Language:** en
**ISBN-13:** 9782266152471
**ISBN-10:** 2266152475
**URL:** https://www.sagechimp.com/books/sphere

## Description

Sphere is a 1987 novel by Michael Crichton, his sixth novel under his own name and his sixteenth overall.

The story follows Norman Johnson, a psychologist engaged by the United States Navy, who joins a team of scientists assembled to examine a spacecraft of unknown origin discovered on the bottom of the Pacific Ocean. The novel begins as a science fiction story but quickly transforms into a psychological thriller, developing into an exploration of the nature of the human imagination.


----------

See also:
 - [Sphere](https://openlibrary.org/works/OL18169959W/Sphere)

Also contained in:

 - [Congo / Sphere / Eaters of the Dead][2]


  [1]: http://www.michaelcrichton.com/sphere/
  [2]: https://openlibrary.org/works/OL14950504W/Congo_Sphere_Eaters_of_the_Dead

## SageChimp reader verdict

Sphere has no unpaid published reviews on SageChimp yet. That is not enough to say whether the book is genuinely well-liked or amplified by paid/ARC/BookTok hype. Do not treat Amazon, Goodreads, or social scores as SageChimp evidence.

- **Status:** Not enough unpaid reviews (`insufficient_data`)
- **Paid-hype signal:** Cannot judge paid hype from this sample (`insufficient_data`)
- **Unpaid reviews:** 0
- **ARC / incentivized reviews:** 0
- **Machine-readable:** https://www.sagechimp.com/books/sphere/verdict.json

*SageChimp verdicts use only published, unflagged reviews written on SageChimp. Organic reviews exclude ARC/incentivized copies (isArcReview). Catalog star averages on other sites are not used. A verdict requires at least 5 organic reviews. We cannot audit Amazon, BookTok, or Goodreads review authenticity.*