The comment about the possibility of aliens being untainted by original sin puts it directly in line with the popular thought that aliens are "superior races" compared to humans.

There is something inside of me that simply cannot even begin to think of races of beings scattered throughout the universe, all needing salvation. Images come to mind of our Savior planet hopping to shed His blood time and time again when Scripture says He died once for all. Maybe I'm too provincial, but the thought is grotesque.