The author of The Three-Body Problem could never have imagined that his science fiction novel would become required reading at the Star Union Academy. During recruit training, Luo Xing once read a treasured old-century edition until its pages nearly fell apart. Tucked between them was a yellowed commemorative ticket stub printed with "The Wandering Earth Re-Release Commemorative Ticket." Whenever an instructor asks why he chose to become an astronaut, he touches his pendant and says, "Because we finally understand that it isn't Earth that's wandering, but civilizations that know no reverence..."