Self-Inflicted Wounds (2): Wait for the Wheel - S3-E4
Visible crew/equipment: While Aeryn and John are running in the corridor separately, when Aeryn and John meet in the corridor, just as she yells, "No, blocked! Outer hull rupture! Long way!" a crew member can be seen crouching at the right side of the screen.
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 ★