Would they? I thought the reason why Etheirys was so special was because it was ripe with Aether, unless I am remembering incorrectly. Making the journey to other worlds a moot point since they had all they needed on Etheirys. Besides, whether intentional or not, I think Hermes was really the only one to question beyond their star? Which of course would seem odd given most civilizations expand outward in most cases, but maybe it just wasn't an appealing thought to the content people of Etheirys.
