Goodbye Earth 2: Continuation of Civilization

Some civilizations were never truly gone. They just moved to the darker parts of the universe. Humanity always thought they were the protagonists of the starry sky. Until we found an entire abandoned planet in deep space. No corpses, no signs of war, only a message carved into the rock layers, repeated for hundreds of millions of years: "Don't chase the light; the light will lead you to the end."