Ok, but do people actually consider life discovered on another planet as a threat to creationism? (which is a complete mystery to me why) I see so many people that almost seem fearful that anyone would even look.
Some are, but when they stop a minute and think about it they usually realize it isn't such a big deal. If life is found on Mars, or on the moon (also possible), everybody will have to integrate that knowledge and most have already figured out one way or another it will be a non-issue.