I always figured that the extremes of interstellar space automatically precluded anything that was even remotely alive. The temperature swings, vacuum, radiatio

I always figured that the extremes of interstellar space automatically precluded anything that was even remotely alive. The temperature swings, vacuum, radiation, and ejection and re-entry violence always seemed to me to be so crazy that I assumed that nothing could survive it; just bits of genetric material, a dead ameoboid carcass, etc. I'll have to ponder on the idea that anything could get past all those 'gates'. If it did, woah, what a hardy little thing!