Doomsday: the Moon Is Penetrated

A fragment of the core of a brown dwarf hit the moon, causing a fragment with a diameter of 200 kilometers to separate from the moon and go straight to the earth. Tang Li, an astrophysicist, was the first to calculate the impact time. This gave China valuable early warning time. A huge disaster is about to come, and the survival of mankind is on the line. Tang Li shouldered the important task of continuing human civilization.