The Three-Body Problem

The Three-Body Problem (2008):

Plot: The story begins during the Cultural Revolution in China, where astrophysicist Ye Wenjie sends a signal to a distant star system, Trisolaris, hoping for alien contact. The Trisolarans, facing their own existential crisis due to their erratic three-sun system, decide to invade Earth.

Themes: It explores themes like the impact of human decisions, the nature of scientific discovery, and the philosophical implications of first contact with an alien civilization.