May Book Group The Three Body Problem

Title: The Three Body Problem by Cixin Liu
Genre: hard science fiction

*according to those who have read and/or recommended this book, you do not need to read the entire trilogy to enjoy this story, and it can stand alone.

The Three-Body Problem, a 2008 science fiction novel by Cixin Liu, is the first book in his Remembrance of Earth's Pasttrilogy. Set during China's Cultural Revolution, the story follows a secret military project that sends signals into space to contact aliens. A dying alien civilization on Trisolaris, a planet in the Alpha Centauri system, receives the signal and plans to invade Earth