Comet of human migration

Protect the earth's home,100000 years later, human beings will definitely still be there. At that time, science and technology were highly developed, and we were not worried about the changes in the external environment at all. Any invading asteroids, comets, alien evil forces and so on will be destroyed by special weapons. Even if the sun is destroyed after 500,000 years, the earth will wander in space (as described in the movie The Wandering Earth), or humans will emigrate to other livable planets.