I do follow your point @illuminatus. But I feel we have done well for ourselves despite all threats to our lives. If the need for sterilization and preservation from outer space contaminations are needed, we will definitely find our way around it.
Let me ask, are you sure you are not planning to be a space dude or something of that nature someday?
Lol. I don;t think it would be a bad idea to own a piece of real estate on a different world some day.