Three Body Problem

The Three-Body Problem (Chinese: 三体; lit. 'three body') is a 2008 novel by the Chinese hard science fiction author Liu Cixin. It is the first novel in the Remembrance of Earth's Past trilogy.[1] The series portrays a fictional past, present, and future wherein Earth encounters an alien civilization from a nearby system of three Sun-like stars orbiting one another, a representative example of the three-body problem in orbital mechanics. https://en.wikipedia.org/wiki/The_Three-Body_Problem_(novel)