User blog comment:ChromastoneandTabby/Do aliens really exist?/@comment-26198499-20100810043035

I know that there is a moon of Jupiter called Europa that has a ice crust that scientists think that there is a sea under the crust, so it is possible that there is life down there. These can be small creatures like amebas but that can count as a alien. Also in a different solar system there is a moon of a planet that looks like Earth.