Higher density planets

[Ankh]

Does Ra ever mention life on Jupiter or it's moons?

Not to my knowledge. This is the only mentioning of Jupiter in the material:

However, there are various correspondences with the archetypical mind which may be more and more refined by the adept. “Ve Geburah” is the correspondence of Michael, of Mars, of the positive, of maleness. “Ve Gedulah” has correspondences to Jupiter, to femaleness, to the negative, to that portion of the Tree of Life concerned with Auriel.