Self-Inflicted Wounds (1): Could'a, Would'a, Should'a - S3-E3
Visible crew/equipment: While John, Zhaan, Neeyala, et al. Are trying to decide between Moya and the spiral ship, after Rygel snips, "You're both dying! And now you want to take us with you," when John throws the ball at Rygel we can see the puppeteer's fingers under Rygel's sleeve as the Hynerian raises his hands.
Chosen answer: It's never explained. John mentions a theory that his less technologically developed craft simply interferes with the wormhole less than the "superior" Vipers, but they never make a concrete determination on that point. But we also have to take into account the fact that Moya traverses wormholes with no ill effect as well.
Garlonuss ★