Hey, we already doing interstellar travel. At some point, we will reach an another star and even another galaxy (Andromeda). Also, there is lot of planet size

Hey, we already doing interstellar travel. At some point, we will reach an another star and even another galaxy (Andromeda). Also, there is lot of planet size bodies between us and nearest stars. I expect 10 planets with mass of Jupiter between Solar system and Alpha Centaur system, or 1000 planets with mass of Earth. We can colonize them one by one.