Colonizing on on other Planets

I think we should try to build colonies on other planets.  It would give us a chance to explore the universe even more than just being in a rocket.  I don't think that the human race will destroy itself, but exploring space and finding places we could live other than Earth would be a great achievement for us.  It could be possible that an asteroid will destroy Earth in the future.  If we had colonized on other planets, the human race could still live on.  So if we ever found a way to colonize somewhere else other than Earth, even if it would take over 100 years to get there, we should make it a reality.