Yavin Prime is an uninhabitable gas giant, but three of its moons allow for human life.

[ cassian frowns too. can't say he's ever heard of a void dimension?? hyperspace is... kind of a void, but it's not livable. ]

From my understand of this planet, Earth, it took time for them to discover nearby planets, much less those further away. How did you discover this? Is that information about Etheria suppressed or simply lost?