My Five Hundred Years from Now

One day in 2231, humans on Earth launched a spacecraft into the sky, and the spacecraft returned to Earth half a year later. One day ten years later, mankind's first curvature engine was born, and then entered the era of interstellar colonization, known in history as the First Year of Interstellar. 500 Years later, a colonial planet sent an ancient distress signal, and the colonial base sent a team to investigate. . . .