Warp points

[Jeb]

Does anybody know what defenses (if any) work against those warp points that damage ships moving through them? Shields? Armor? I haven't had my homeworld blocked off from the rest of the universe by a black hole yet, but I have seen it happen to the AI. Actually, I'm playing a game right now where the only way to get to my Terran enemies without going all the way around Robin Hood's barn is through a nasty black hole system. My best workaround so far is to send in fleets that include a couple of repair ships, so ships that do get damaged can be fixed before they fall into the singularity.