Galaxy Immigration

Earth's Gregorian calendar year 3900: Earth's civilization will enter the first level of civilization for the first time. Earth's Gregorian Era 7017: Earth's civilization can reach the second level of stellar civilization. Earth's Gregorian Era 7700: Wolf 424, which is 14.3 Light years away from the Earth, will reach 1 light year away from the sun. Earth's Gregorian Era 10,000: The predicted probability of human extinction is 95%. Earth 30 to 40 million AD: The Smith Cloud collided with the Perseus Arm of the Milky Way at an angle of 45 degrees Earth Year 4 Billion AD: The Andromeda Galaxy and the Milky Way will collide. In order to cope with the collision of the Virgo Galaxy with the Milky Way, Chen Miao, a level 1.5 Civilization, uses starry black technology to expand the territory of the space city and step out of the Milky Way circle... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.