Good question. Right now, we don't have the technology. Will we ever have the technology? Is the technology even possible? We don't know the answer to these questions.

Galaxies are a very long way away. Even the Magellanic Clouds are tens of thousands of light years away, and Andromeda is nearly five million light years away. Even if we could travel at the speed of light, it would take us many times the history of civilization to get there, and there are problems with even getting near the speed of light, so it would take us even longer.