Cold Star

In a binary planetary system, the two planets are only 50,000 kilometers apart and are tidally locked to each other. Tianyuan Star and Movie Star - two humanoid civilizations that evolved independently but were surprisingly synchronized. Under the eternal gaze of "there is an audience in the sky", they moved from performative competition to the space era. Lin Kai, an observation assistant at the lowest level of Tianyuanxing Observatory, discovered late one night that all the lights of the movie star went out at the same time. This discovery involves him in a civilizational game far beyond imagination, as well as a mysterious signal from a movie star. The ultimate form of the security dilemma emerges when two civilizations are too close, too visible, and too similar to establish trust. From orbital kinetic energy weapons to AI network attack and defense, from non-lethal warfare to the interstellar microbial cloud crisis, Lin Kai has gradually grown from a neglected technician to a bridge between two civilizations. Black hole time anomalies, quantum entanglement communication, space-time rifts... When the bifurcation of the technological tree pushes two civilizations into completely different futures, only by understanding the other who is "like me but not like me" can we find the possibility of coexistence. This is a hardcore science fiction epic about two planets, two paths, and life looking for coexistence among the stars.