Letters from the Oort Nebula

Introduction to Deep Space Echoes Huo Ran, the youngest chief engineer of China's aerospace industry, received a series of pi signals from 0.8 Light-years away on the eve of launch. This is not noise, but an invitation—or a trap. With the emotional AI "Tangtang" based on his crush, he drove the most advanced deep space spacecraft "Kuafu" in human history, heading towards the unknown deep in the Oort Nebula. On the way, he discovered alien life using a six-base genetic code in the underground ocean of an icy planet - they have nothing to do with life on earth, but have evolved silently for three billion years. And in the deepest part of the ocean, a metal fragment engraved with fractal circuits sleeps quietly. Its dating results point to a chilling answer: it is older than any multi-cellular life on earth. In front is the echo of alien civilization, and behind is the watch of the earth. What Huo Ran has to face is not only the loneliest journey in the vast universe, but also the gradually awakening emotions of AI, the truth buried three billion years ago, and an ultimate question—— Are humans orphans or latecomers in the universe? Use the powerful weapon of a great power as a pen to write the warm stories behind hard-core technology; use the abyss of people's hearts as a volume to explore the emotions and identity of the technological era. "Deep Space Echo" - a journey across the stars that spans 0.8 Light-years, a future epic about loneliness, love and existence.