There is something in the universe called the goldilocks zone and scientists have been trying to find a planet which is in that zone. The goldilocks zone is where a planet is just the right amount away from the sun that it can adapt to life yet no one has found a planet which has those conections to fit the peices together. Scientists have searched and have yet to find a planet which we can transport human life to. Maybe there could be another planet, sitting around in space, waiting for us to inhabit it. Or there could not, what if there's no point in searching for another planet after all. An alien could be real, sure, but they can inhabit extremely harsh areas in my opinion.