We reach the point where we can't fit all the fleet in only one planetary system.The colonization begins.
First we go to the closest planet,which is in the outer habitable zone.We first set up a space station and then we get some people to go on the land.First exploration team!Then we put a base there,develop the base,then the colony is self-efficient.Establishing the process again,and again for each other planet in the system.Of course this will take a lot of days,but it will be worth it.
