Comment by kbelder

I've read Europa has more water than Earth. Is the idea that it accumulated its water through an entirely different means? Or that it formed with its water, and didn't lose it during the initial coalescence, like the Earth did?

This is one of those areas where I don't know enough to oppose the scientists that are experts in this domain, and so I know I should accept the general consensus... but there's still a niggling doubt in my mind because it just doesn't feel right.