posted on Mar, 10 2017 @ 04:06 AM
a reply to: carewemust
By the logic you are using to query the construction of Saturn's moons, their variety and disposition, one would assume that all the worlds orbiting
our Sun ought to be made of largely the same things, and look relatively similar. This is, of course, flawed thinking.
Saturn and Jupiter have large gravity wells, larger than any body in the solar system other than the Sun itself. This means that their moons
behaviour relative to them, is more similar to that of planets around a star, than it is to that of a mere moon around a planet.
Those moons formed out of what was left over from the formation of the planet itself, and in similar ways to the way that planets formed around the
sun. The gravity well of the planet captured the chemicals of which those moons are made, and because those chemicals have different mass and weight
and so on, they coalesced at different distances from the parent planet. Jupiter and Saturn are like microcosms of a solar system, having as they do
complex systems of orbiting moons in their own right. When spacecraft pass through or close by Jupiter's gravity well, those craft are considered not
to simply be visiting Jupiter, but to be visiting the Jovian system, for precisely this reason. You could say the same of Saturn without being in