Wormhole tech is like level 3 stellar manipulation. Get astrophysics and then start in on steller. Personally, I recommend just flying past the blackholes, I do it all the time. If the damaged wormholes are eating you up too bad, start sendng repair ships through with colony ships, between them (the colony pod iteself is amazingly resistant to damage) you should get a foothold on the other side fairly easily.
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