planet's jupiter

in the year 27022, a spaceship the size of a planet is headed for it's target location sent by their ancestors. Earth was going to die out in the year 2050 so they had a. plan to save the human race; A spaceship full of food, humans and recreation. 5 Sanctions was built; 5 large societies on the vessel. Jupiter was from the Planet society, named after many of his forefathers. But the destination and meaning had been lost over the course of their long journey and now they were nearing the end of the plotted course, will Jupiter be able to save the Earth277 Vessel from utter destruction? Or steer it to the correct course so that the human race is saved.