What is the three-body talking about? The content of three-body is summarized.

1, Three-body is a series of novels by Liu, which consists of Three-body, Three-body Ⅱ Dark Forest and Three-body Ⅲ Death. The work tells about the information exchange between human civilization and three-body civilization on the earth, the life-and-death struggle and the rise and fall of the two civilizations in the universe. His first novel was translated by Liu Yukun and won the Best Novel Award in the 73rd Hugo Award.

2. Three-body is about a group of aliens. Their home planet has three suns. For some reason, this three-body system is unstable and will easily collapse, so they are going to change places to live. Three-body is preparing for interstellar migration, but the universe is so big, it is dark everywhere, and I don't know where to migrate, so three-body got thousands of space stations to monitor signals and see if there is any connection.