I've noticed ships from other factions using wormholes for what looks like travel between sytems (i.e. stars). They fly to the middle of the wormhole and disappear and sometimes ships will appear in a wormhole gravity well. However, nothing happens when I send my ships to the center of a wormhole. I tried looking for a research category dealing with this ability and found nothing. Does anyone know how to use wormholes for travel?