Earth resources are rapidly exhausting, it is time for mankind to think about conquering space expanses and expanding its galactic possessions. A reconnaissance flight is sent by a rocket. The crew will have a long intergalactic tour to find a planet suitable for a mass migration of people. New housing should be as much as possible on earth: the atmosphere, climate, size. It is not easy in an infinite space to find something similar, but there is no other way out. Equip the rocket and take off. Carry a stock of fuel is unrealistic, so the ship must collect the tanks along the way. If it does not have time to refuel, the rocket will fall down.
