- Micrometeorites churn up the surface of Europa. if you want to find life, you'll need to dig down a meter or so. https://www.universetoday.com/151896/micrometeorites-churn-up-the-surface-of-europa-if-you-want-to-find-life-youll-need-to-dig-down-a-meter-or-so/ 5 comments space