Sphere

About “Sphere”

Sphere is a 1987 novel by Michael Crichton, his sixth book written under his own name and his sixteenth overall. The story centers on Norman Johnson, a psychologist who is invited by the United States Navy to join a group of scientists investigating a mysterious spacecraft found on the ocean floor in the Pacific. Initially a science fiction narrative, the novel shifts into a psychological thriller, focusing on the mental and emotional challenges faced by the characters. It also explores themes related to the human mind and the power of imagination.